Searching for a short depth rackmount server means balancing compact size with performance and expandability. The top pick, the RackChoice 2U Short Depth Server Chassis, stands out for its balance of size and support for micro-ATX motherboards. The IN-WIN IW-RF100S-S265 offers a compact 1U form factor ideal for space-constrained setups, while the RackChoice 2U Rackmount Server Chassis with Hot-Swap Bays is perfect for those needing easy maintenance and high storage capacity. The main tradeoffs involve choosing between size, expandability, and cooling options, making this a nuanced decision. Continue reading for a detailed breakdown to find the best fit for your needs.
Key Takeaways
- Size and form factor significantly influence cooling options and expandability in short depth servers.
- Support for different motherboard sizes (Micro-ATX, ATX, Mini-ITX) impacts future upgrade potential.
- Hot-swap bays and drive support are critical for high-storage and enterprise needs, often requiring tradeoffs in size.
- Cooling design varies widely; compact cases often limit airflow but can be optimized with strategic fan placement.
- Power supply compatibility and UPS integration are key for reliability in short-depth rackmount setups.
| short depth rackmount server | Depth | Drive Bays |
|---|---|---|
| RackChoice 2U Server Chassis S | 14.17 inches | 1x 3.5-inch |
| Rosewill 2U Server Chassis Rac | — | — |
| 3U 19-Inch Industrial PC Case | — | — |
| RackChoice 2U Rackmount Server | — | 12x 3.5" / 2.5" |
| Eaton Tripp Lite SMART1500LCD | — | — |
| Rackchoice 4U Rackmount Server | 420mm | 4×3.5" + 3×3.5" or 2×3.5"+2×2.5" |
| CyberPower CP1500PFCRM2U PFC S | 10.5 inches | — |
| CyberPower CP2000PFCRM2U PFC S | — | — |
| RackChoice Server case MicroAT | 15.7 inches | 7×3.5" |
| IN-WIN IW-RF100S-S265 1U Short | 9.8 inches | 2x 2.5" + 2x 3.5" |
More Details on Our Top Picks
RackChoice 2U Server Chassis Short Depth with Front I/O and Support for Micro-ATX Motherboards
This 2U chassis stands out for its compact 14.17-inch depth, making it ideal for tight server rooms where space is limited. Unlike the larger RackChoice 4U model, it sacrifices some drive capacity but excels in fitting into cramped spaces. Its support for Micro-ATX and Mini-ITX motherboards offers flexibility, though it cannot handle larger EATX boards. The inclusion of three 80mm fans ensures decent airflow, but the limited drive bays restrict storage expansion. Notably, it supports standard ATX power supplies, which adds versatility, but it doesn’t include one, adding to overall cost. This option is perfect for small-scale setups needing a reliable, space-efficient chassis.
Pros:- Compact 14.17-inch depth ideal for tight spaces
- Supports standard ATX power supplies for flexibility
- Good airflow with three included fans
Cons:- Limited drive bay capacity restricts storage expansion
- Compatibility limited to Micro-ATX and Mini-ITX boards
- No included power supply, increasing total cost
Best for: Small businesses or home labs with space limitations requiring a compact yet expandable server chassis.
Not ideal for: Users needing extensive storage options or larger motherboard support, like EATX builds or high-capacity storage arrays.
- Material:Heavy-duty & Rugged steel SGCC 1.2mm
- Depth:14.17 inches
- Width:19 inches
- Height:3.5 inches
- Supported Motherboard:Micro-ATX, Mini-ITX
- Drive Bays:1x 3.5-inch
- Fan Size:3 x 80mm
- Power Supply Support:ATX, Top or Side Mount
Our verdict“This chassis suits users looking for a space-saving, reliable server case for small-scale deployments.”
Rosewill 2U Server Chassis Rackmount Case | 4 x 3.5 HDD Bays | Micro-ATX Compatible | 3 x 80mm PWM Fans | 2 x USB 3.0 | RSV-Z2600U
Compared with the RackChoice 2U chassis, the Rosewill RSV-Z2600U offers a significant boost in storage with four hot-swappable 3.5-inch bays, making it ideal for data-heavy environments. Its support for Micro-ATX motherboards provides flexibility, though it shares the same limited expansion slots. The inclusion of three PWM fans enhances cooling efficiency, especially important for storage-intensive workloads. Front LED indicators and USB 3.0 ports add convenience, but the design can feel bulky, especially if space is tight. It lacks a power supply, like most cases in this roundup, which adds to overall cost. This case is a smart choice for professionals prioritizing storage capacity within a standard 2U form factor.
Pros:- Supports four hot-swappable 3.5-inch drives
- PWM fans for effective cooling
- Front panel LED indicators and USB 3.0 ports
Cons:- Limited to 4 expansion slots
- Bulky design for small or crowded rack spaces
- No included power supply
Best for: IT professionals or small data centers needing reliable storage expansion in a compact 2U chassis.
Not ideal for: Environments requiring extensive motherboard support beyond Micro-ATX or with high airflow demands for high-performance computing.
- Case Type:Tower
- Motherboard Support:Micro ATX
- Cooling Method:Air
- Fan Size:80mm
- Total Drive Bays:4 x 3.5 inches
- Internal Bays:4
- Rackmount:Yes
- Power Supply Mounting:Rear
Our verdict“This chassis is well-suited for storage-focused setups that prioritize expandability within a 2U form factor.”
3U 19-Inch Industrial PC Case with Magnetic Door and Dust Filter, Rackmount Server Chassis Supporting 360mm Liquid Cooling, ATX PSU Compatible
This 3U chassis excels in demanding environments, supporting full-sized ATX motherboards and high-performance cooling options like 360mm liquid radiators. Unlike the compact RackChoice 2U and Rosewill 2U models, it prioritizes expandability and thermal management, making it suitable for heavy-duty tasks. The magnetic dust filter and steel construction provide enhanced protection, but its weight and size can limit portability. It’s overkill for small or basic setups, yet perfect for industrial or high-performance server applications. No included power supply, typical of this class, adds to its total cost. This chassis is ideal for users needing maximum cooling and space for powerful components.
Pros:- Supports liquid cooling up to 360mm radiators
- Magnetic dust filter enhances airflow and component protection
- Spacious interior for full-size ATX boards and multiple drives
Cons:- Heavy and less portable due to steel construction
- Overly large for basic or small-scale setups
- No included power supply
Best for: Industrial users or data centers requiring high cooling capacity and extensive component support.
Not ideal for: Small offices or home labs that don’t need high cooling capacity or extensive expandability.
- Form Factor:3U rack-mountable
- Cooling Support:Supports liquid cooling up to 360mm
- Power Supply Compatibility:Standard ATX
- Front Panel:Magnetic door with dust filter
- Material:Steel
- Front Ports:USB 3.0
Our verdict“This chassis suits environments demanding maximum cooling and expandability for high-performance components.”
RackChoice 2U Rackmount Server Chassis with 12 Hot-Swap Bays and Sliding Rails
Compared to the smaller RackChoice 2U case, this model offers a significant increase in storage capacity with 12 hot-swappable bays, making it ideal for data centers or enterprise environments. Its support for Micro-ATX and Mini-ITX motherboards provides flexibility, but the 21.5-inch depth makes it less suited for tight spaces. The inclusion of sliding rails simplifies installation and maintenance, and the support for standard ATX power supplies ensures compatibility. However, cooling may be less effective for high-performance components due to its size and airflow design. This case is best for those prioritizing large storage arrays and ease of maintenance over compactness.
Pros:- Supports 12 hot-swappable drive bays
- Includes sliding rails for easy maintenance
- Compatible with standard ATX power supplies
Cons:- Requires a 600mm cabinet for proper fit
- Limited cooling capacity for high-performance hardware
- Relatively large and less suitable for confined racks
Best for: Large-scale storage deployments or enterprise environments needing maximum drive flexibility.
Not ideal for: Small offices or setups where space is limited, due to its depth and size.
- Motherboard Size:Micro-ATX / Mini-ITX
- Drive Bays:12x 3.5″ / 2.5″
- Cooling System:4 x 80mm fans
- PSU Support:Standard ATX
- Rackmount Depth:21.5 inches
- Cable Included:Mini SAS to SATA cables
Our verdict“This chassis is designed for users needing extensive storage and straightforward maintenance in larger rack setups.”
Eaton Tripp Lite SMART1500LCD 1500VA 2U Rack Mount UPS 900W Battery Backup
While not a server chassis, this UPS plays a vital role in supporting short depth rackmount servers by providing clean, reliable power during outages. In comparison with the CyberPower UPS options, the SMART1500LCD offers a balanced 1500VA capacity with a clear LCD display for monitoring, making it suitable for small to medium server setups. Its 2U form factor allows mounting in the same rack as server hardware, ensuring minimal space usage. The adjustable voltage regulation and user-replaceable batteries add to its reliability, although the modified sine wave in battery mode may not suit very sensitive equipment. This UPS is ideal for small to medium-sized servers needing dependable backup power and surge protection.
Pros:- Reliable 1500VA/900W power capacity
- Versatile 2U rack mounting option
- Automatic voltage regulation and LCD monitoring
Cons:- Modified Sine Wave may not suit sensitive electronics
- No extended runtime details available
- Batteries require manual replacement over time
Best for: Small to medium businesses or home server setups requiring reliable power backup within limited rack space.
Not ideal for: High-demand environments needing extended runtime or pure sine wave output for sensitive equipment.
- Capacity:1500VA/900W
- Outlets:8 NEMA 5-15R
- Input Power Cord:6-foot NEMA 5-15P
- Mounting Options:2U rack or vertical tower
- Voltage Regulation:75V to 147V
- Waveform:Modified Sine Wave
Our verdict“This UPS provides dependable power backup for small to medium rack-mounted servers and networking gear.”
Rackchoice 4U Rackmount Server Chassis with Multiple Drive Bays and Support for EATX/ATX/Micro-ATX/Mini-ITX Motherboards
This 4U chassis stands out for supporting a broad range of motherboard sizes, including EATX, which sets it apart from the RackChoice 2U Short Depth case that only supports Micro-ATX and Mini-ITX. Its extensive drive bays and support for large GPUs make it ideal for complex storage and GPU-heavy builds. The multiple pre-installed fans ensure effective airflow, a significant advantage over more minimal cooling setups. However, with a depth of 420mm, it may not fit in slimmer rack setups, and the lack of tool-less installation details could complicate assembly. Compared to the Rosewill 2U case, this offers more expansion options, but at the expense of size and potential installation ease.
Pros:- Supports a wide variety of motherboard sizes including EATX, ATX, Micro-ATX, and Mini-ITX
- Multiple pre-installed cooling fans for effective airflow
- Large number of drive bays for extensive storage options
- Front USB 3.0 access for quick peripheral connectivity
Cons:- No included power supply, adding to overall build cost
- Depth of 420mm may restrict compatibility with slim racks
- Limited information on tool-less or quick-install features
Best for: IT professionals building high-capacity, customizable servers with extensive storage or GPU needs in standard rack environments.
Not ideal for: Small office setups or environments with limited rack depth, due to its larger size and depth constraints.
- Drive Bays:4×3.5″ + 3×3.5″ or 2×3.5″+2×2.5″
- Motherboard Support:EATX, ATX, Micro-ATX, Mini-ITX
- Motherboard Size:12″ x 13″
- Cooling:3 x 12cm front fans + 2 x 8cm rear fans
- Case Type:4U Rack mount
- Depth:420mm
- Expansion Slots:7 full height
- Additional Features:Supports large GPU
Our verdict“This chassis is best suited for users needing high flexibility and extensive expansion in a standard rack environment.”
CyberPower CP1500PFCRM2U PFC Sinewave UPS Battery Backup, 1500VA/1000W, 8 Outlets, Rackmount, UL Certified
This 2U UPS offers a compact solution for protecting critical equipment in tight rack spaces, with a 1500VA/1000W capacity that surpasses the CyberPower CP2000PFCRM2U in space efficiency. Its sinewave output and automatic voltage regulation make it suitable for active PFC devices, though it only provides 8 outlets, which may require power strips for larger setups. The color LCD panel delivers real-time system status, much like the display on the 2000VA model, but at a smaller capacity. Its short depth of 10.5 inches makes it ideal for constrained rack environments, whereas the larger 2000VA model might be overkill for smaller racks. Compared to the IN-WIN 1U chassis, it offers power backup instead of hardware support, fulfilling different needs.
Pros:- Reliable sinewave power output suitable for active PFC devices
- Compact 2U design fits well in tight rack spaces
- Color LCD panel provides detailed, real-time system alerts
- Automatic voltage regulation extends battery life
Cons:- Limited to 8 outlets, possibly requiring additional power strips
- No built-in remote management hardware, needing extra purchase
- Unspecified backup runtime duration may limit planning
Best for: Small to medium business servers or network equipment needing reliable backup in limited rack space.
Not ideal for: Environments requiring more than 8 outlets or extensive remote management features, unless additional hardware is purchased.
- Capacity:1500VA/1000W
- Outlets:8 NEMA 5-15R
- Form Factor:2U Rackmount
- Depth:10.5 inches
- Certification:UL Certified
- Warranty:3 years including battery
Our verdict“Ideal for space-constrained environments needing dependable power backup for essential network and server equipment.”
CyberPower CP2000PFCRM2U PFC Sinewave UPS Battery Backup, 2000VA/1200W, 8 Outlets, Rackmount, UL Certified
This 2000VA model excels in protecting demanding server setups with space constraints, offering a robust 1200W capacity comparable to the CyberPower CP1500PFCRM2U, but with more outlets—8 NEMA 5-20R outlets for larger device arrays. Its short chassis of 10.8 inches ensures it fits well in tight racks, and features like automatic voltage regulation and EMI/RFI noise filtering enhance power quality. The multifunction LCD provides comprehensive real-time alerts, similar to the smaller model, but supports higher loads, making it suitable for more intensive applications. On the downside, the runtime duration isn’t specified, and remote management requires optional cards. For users needing more outlets and higher capacity in a small form factor, this pick is ideal.
Pros:- High-capacity 2000VA/1200W power output suitable for demanding setups
- Space-efficient short-depth chassis (10.8 inches)
- Multifunction LCD for detailed real-time system monitoring
- Supports automatic voltage regulation and noise filtering
Cons:- Limited to 8 outlets, may require power strips for additional devices
- No included remote management hardware, additional purchase needed
- Backup runtime duration not specified can be a limitation
Best for: Space-limited data centers or network rooms requiring high-capacity backup for multiple devices.
Not ideal for: Users needing remote management out of the box or more than 8 outlets without additional hardware.
- Capacity:2000VA/1200W
- Outlets:8 NEMA 5-20R
- Input:NEMA 5-20P, 6 ft cord
- Chassis Depth:10.8 inches
- Features:Automatic Voltage Regulation, EMI/RFI Noise Filtering
- Warranty:3 years including battery
Our verdict“Perfect for high-demand rack environments where space is tight but power needs are high.”
RackChoice Server case MicroATX/Mini-ITX 2U Rackmount Server Chassis max 7×3.5 Bay / USB3.0 with 2.0 Adapter Support ATX PSU Either top or Side Cooling Depth 15.7″
This 2U rackmount chassis strikes a balance between size and expandability, supporting Micro-ATX and Mini-ITX motherboards, unlike the IN-WIN 1U chassis which only supports Mini-ITX. Its support for up to 7 drive bays and compatibility with standard ATX power supplies make it versatile for storage-heavy or mixed hardware setups. The support for either top or side cooling provides flexibility for different airflow configurations, a step above basic designs. However, at 15.7 inches deep, it’s larger than some ultra-compact options, limiting its fit in ultra-slim racks. The absence of PCI expansion slots restricts hardware extendability, making it less suitable for high-performance GPU setups.
Pros:- Supports both Micro-ATX and Mini-ITX motherboards
- Supports up to 7×3.5″ drive bays
- Supports standard ATX power supplies
- Flexible airflow options with top or side cooling
Cons:- Depth of 15.7 inches may not fit in ultra-slim racks
- No PCI expansion slots for adding high-performance cards
- Limited documentation on tool-less assembly
Best for: SMB or enterprise users needing a flexible, space-efficient chassis for Micro-ATX or Mini-ITX server builds with significant storage capacity.
Not ideal for: Users requiring high-end GPU support or maximum PCI expansion, due to lack of PCI slots and larger depth.
- Motherboard Support:Micro-ATX, Mini-ITX
- Drive Bays:7×3.5″
- Power Supply Support:ATX
- Cooling:Top or side airflow
- Depth:15.7 inches
- Expansion Slots:None
Our verdict“This case is ideal for users needing a flexible, moderately compact rackmount for storage-rich Micro-ATX or Mini-ITX servers.”
IN-WIN IW-RF100S-S265 1U Short Depth Mini-ITX Rackmount Server Chassis, 265W
The IN-WIN IW-RF100S-S265 excels in ultra-compact environments, supporting only Mini-ITX motherboards within a shallow 9.8-inch depth, making it the smallest option among these. Its tool-free bays for two 2.5-inch and two 3.5-inch drives simplify storage expansion in tight spaces, similar to the RackChoice 2U Short Depth case but with a focus on minimal footprint. The included 265W 80+ Bronze power supply is sufficient for most Mini-ITX builds, but the lack of PCI slots limits hardware upgrade options. Compared to larger cases, this is ideal for very space-sensitive deployments, though it sacrifices expandability and versatility.
Pros:- Supports Mini-ITX motherboards, perfect for space-constrained setups
- Very shallow depth of 9.8 inches for maximum space savings
- Tool-free drive bays for easy storage expansion
- Includes a reliable 265W power supply
Cons:- No PCI expansion slots, limiting high-end hardware addition
- Limited to Mini-ITX motherboards only
- No additional cooling options beyond the included fans
Best for: Small offices or home lab setups where space is at a premium and high-performance expansion isn’t required.
Not ideal for: High-performance GPU or PCI expansion needs, due to the lack of slots and limited size.
- Form Factor:1U Rackmount
- Motherboard Support:Mini-ITX
- Drive Bays:2x 2.5″ + 2x 3.5″
- Power Supply:265W 80+ Bronze
- Cooling Fans:Supports 3x 40x28mm fans
- Depth:9.8 inches
- Expansion Slots:None
Our verdict“This chassis is best for very space-limited environments needing a simple, reliable Mini-ITX server solution.”
How We Picked
These products were evaluated based on size constraints, build quality, expandability, cooling options, and ease of maintenance. Priority was given to models that maximize internal space within minimal depth, supporting a range of motherboard sizes and storage configurations. We also considered user reviews and industry reputation to gauge reliability and support. The ranking reflects a balance between compactness, performance potential, and value, helping buyers identify options suitable for various use cases—from small businesses to enterprise applications.Factors to Consider When Choosing Short Depth Rackmount Server
Choosing a short depth rackmount server involves more than just size. It’s important to consider how the chassis’ dimensions will impact cooling, expandability, and compatibility with your existing infrastructure. A well-selected case can improve airflow, simplify maintenance, and future-proof your investment. Being aware of your specific needs—such as storage capacity or processing power—helps narrow down the best options and avoid costly mistakes.Size and Form Factor
Size is the primary concern for a short depth rackmount server. While smaller units save space, they often limit internal airflow and expansion options. 1U and 2U cases are most common, with 1U models offering the smallest footprint but less room for components. Carefully consider your current and future hardware needs—choosing a case that balances depth with internal capacity is key to avoiding bottlenecks or the need for costly upgrades later.
Motherboard Compatibility and Expandability
Not all short depth servers support the same motherboard sizes. Micro-ATX is common and offers a good balance of size and expandability, while Mini-ITX cases are more compact but limit upgrade options. Support for multiple drive bays, PCIe slots, and RAM slots can influence the lifespan and flexibility of your server. Overlooking motherboard compatibility can lead to unexpected limitations or the need for a complete chassis change in the future.
Cooling and Ventilation
Compact cases often restrict airflow, making cooling design critical. Look for models with strategic fan placements, dust filters, and support for high-performance cooling solutions if needed. Poor airflow can lead to overheating, especially under load, reducing component lifespan and performance. Investing in cases with good ventilation features can save money and frustration down the line.
Storage Support and Drive Bays
Determine your storage needs early. Some short depth cases offer numerous hot-swap bays for easy maintenance, ideal for enterprise or NAS applications. Others may support only a few drives, which is sufficient for smaller setups. Be mindful of compatibility with SSDs and HDDs, as well as power and data cable management—these factors significantly influence ease of setup and expansion.
Power Supply Compatibility and UPS Options
The power supply must match the chassis support and provide enough wattage for your hardware. Consider models that support standard ATX PSUs for flexibility. Additionally, incorporating a UPS, like the reviewed models, can safeguard against power interruptions, especially in critical workloads. Compatibility and capacity are vital to ensuring reliable operation without overloading the system.
Frequently Asked Questions
Can I upgrade components in a short depth rackmount server?
Upgrading components depends heavily on the specific chassis. Many short depth servers support additional RAM, drives, and sometimes even GPU or PCIe cards, but space limitations can restrict larger upgrades. Always check the motherboard and chassis specifications to confirm compatibility and available slots before planning upgrades. Proper cooling and power capacity should also be considered to maintain stability after upgrades.
What is the best size for a short depth rackmount server?
The ideal size depends on your space constraints and hardware needs. 1U models are best for ultra-compact setups but offer limited internal space, while 2U cases strike a balance between size and expandability. For those with slightly more room but still prioritizing depth, 3U or 4U options can deliver more flexibility without sacrificing too much space. Evaluate your current hardware and future plans carefully to pick the right form factor.
Are short depth servers suitable for high-performance workloads?
Yes, but with caveats. Smaller cases can support high-performance components if designed properly, including adequate cooling solutions. However, thermal management becomes more challenging, and airflow restrictions might limit overclocking or sustained workloads. Choose a chassis with good ventilation and consider supplemental cooling if you plan to run demanding applications continuously.
How important is cooling in a short depth rackmount case?
Cooling is vital because limited space often means less natural airflow. Efficient cooling design prevents overheating, which can cause hardware failures or reduced performance. Look for cases with multiple fan mounts, dust filters, and support for high-quality cooling solutions. Proper airflow management ensures longevity and stability, especially in densely packed or high-load environments.
What should I consider regarding power supply options for a short depth server?
The power supply must fit within the chassis and provide enough wattage for your hardware. Many cases support standard ATX PSUs, offering flexibility in choosing reliable, high-quality units. For critical applications, pairing the server with a UPS can protect against power fluctuations. Confirm compatibility and capacity early to avoid future power-related issues or the need for replacements.
Conclusion
For buyers prioritizing space-saving and expandability, the RackChoice 2U Server Chassis offers a balanced solution. Small business users or home labs will appreciate the IN-WIN IW-RF100S-S265 for its ultra-compact design. Those needing high storage capacity and easy maintenance should consider models with multiple hot-swap bays like the RackChoice 2U Rackmount Server Chassis with Hot-Swap Bays. For beginners, simple setups with reliable cooling are best, while enterprise users should look at options supporting EATX or multiple drives. Overall, your choice hinges on balancing size, expandability, and workload demands to find the perfect fit.
