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Rosewill THOR NAS - Full Tower Workstation Case | Server Chassis | Supports up to 11 3.5" HDD and 13 2.5" SSD | E-ATX Compatible | 1x 140mm PWM Fan | USB 3.2 Type-C | Ideal for AI Servers, DIY NAS
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Rosewill THOR NAS - Full Tower Workstation Case | Server Chassis | Supports up to 11 3.5" HDD and 13 2.5" SSD | E-ATX Compatible | 1x 140mm PWM Fan | USB 3.2 Type-C | Ideal for AI Servers, DIY NAS

+ $20 off w/ promo code FPSF875, limited offer

  • Motherboard Compatibility: 12" x 13" E-ATX; 12" x 9.6" ATX, 11.2" x 8.2" Mini-ATX and below
  • Power Supply: Supports ATX power supply
  • Internal 3.5" Drive Bays: 11
  • Expansion Slots: 10
  • Model #: THOR NAS
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  • $169.99 
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for 8886 Knife Box Power Supply 39Y7367 39Y7381 7001374-Y000 1450W Power Supply
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  • $234.99 
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for SS-400H1U Active PFC 400W 1U Industrial Control Server Power Supply
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PSU for Single Mini 1U Switching Power Supply FLXA5181A FLXA5201A FLXA 5181A-001G FSC001
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400W Server Power Supply FSP400-40AGPAA 00PC738 SP50H29513 9PA400BL02 PSU 54Y8936
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for Monitoring Video Server Quanhan FSP400-702UJ 400W 2U Plug-in Power Supply
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7000815-0000 AA23290 for PE2800 server 930W redundant power supply
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PSU for Rosor AIO ITX Flex NAS Small 1U 300W Power Supply SO-350PSU
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Power Supply for Thinkserver TS150 M700 400 Watt Power Supply 54Y8936
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  • $401.99 
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for/FSP 400W FSP400-60PFG Server Power Supply Will Fully Tested
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ALTRONIX AL600ULXB Power Supply Charger 12/24V-DC PCB Circuit Board
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for MW for 24V 27A 600W Switching Power Supply HRP-600-24 Industrial Power Supply 24V
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PSU for FSP at P8P9 300W Switching Power Supply SPI-300G SPI-250G SPI-200G PS-7271 SD-250AT
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P2H-6350P for ZIPPY 350W 2U Server Workstation Storage System IPC Power Supply
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43X3311 43X3312 550W Power Supply XSERIES M4 Servers Power Supply
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P1H-5400V 1U server or industrial computer 400W power supply
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1PC Original R360 Server Power Supply Fit for Delta 730W DPS-730AB A D37235-001
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PSU for Single Mini 1U 180W Switching Power Supply FLXA5181A FLXA 5181A-07LB
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PSU for Meiji AIO Flex Small 1U Rated 180W Switching Power Supply F-3000L LWP-F330
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PSU for Ant Platinum Power S9 851 852 T9 E9 L3++ Supply Power Supply Single Channel 1800W
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PSU for R620 R720 R820 server power supply L1100E-S0 GYH9V MAX 1100W
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Desktop PC Power Supply AC Adapter Compatible with Toshiba Qosmio PX30t-A-15D
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for Advantech FSP300-60PLN Industrial Computer Power Supply 300W ATX
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for Advantech FSP300-60PLN Industrial Computer Power Supply 300W ATX

Limited time offer, ends 05/23

  • Model #: KB09L18VRB8
FSP800-20ERM-H for FSP Server Power Supply PS-2801-9L 12V 65A 800W Fully Tested
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for ML150G5 459558-001 461512-001 TDPS-650BB B 650W Server Power supply
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for Server Power Supply for S6502 S6502XG 7502 LS8M5220PWR PSR300-A
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for Server Power Supply for R530/R630/R730/R730XD/R740/T630 750W G6W6K D750E Tested
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PSU for T710 R810 R815 R510 R910 750W Power Supply D750P-S0 CNRJ9 FN1VT P25DV DPS-750TB-1 A
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PSU for Workstations Z200 320W Switching Power Supply DPS-320KB-1 A 502629-001 535799-001
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Server Chassis Guide: Build Your Ideal IT Infrastructure

The server chassis is the backbone of your server setup, housing critical components and ensuring optimal performance. Choose the right chassis to optimize space, airflow, and expandability. Let's explore your options:

Server Chassis by Form Factor

  • Tower Chassis: Versatile and expandable, perfect for growing businesses requiring flexibility and increased storage capacity.
    • Sizes: Full Tower (maximum space), Mid Tower (balanced), Mini Tower (space-saving)
  • Rackmount Chassis: Designed for high-density data centers and server rooms, maximizing space utilization and simplifying cable management.
    • Sizes: Measured in rack units (U), typically 1U, 2U, or 4U
  • Blade Chassis: Ultra-compact and modular, ideal for large-scale deployments where high compute density and shared infrastructure are priorities.

Server Chassis by Brand: Top Manufacturers

  • Rosewill: Budget-friendly, reliable chassis with a focus on rackmount solutions for small to medium businesses.
  • Supermicro: High-performance, enterprise-grade chassis known for their build quality, advanced features, and customization options.
  • Chenbro: Durable and versatile chassis offering a range of form factors and configurations for various IT environments.
  • iStarUSA Group: Specializes in storage-dense chassis with hot-swappable bays and robust cooling solutions.

Server Chassis Buying Guide: Key Technical Considerations

  1. Form Factor: Choose based on your deployment environment, space constraints, and future growth plans.
  2. Size (U) (for rackmounts): Select the appropriate height to fit your rack and server configuration.
  3. Expandability: Consider available drive bays, PCIe slots, and memory capacity for future upgrades.
  4. Cooling: Ensure adequate airflow and fan options to maintain optimal operating temperatures for your components.
  5. Power Supply: Choose a power supply with sufficient wattage and redundancy options to meet your server's demands.
  6. Features: Look for features like hot-swappable drives, redundant power supplies, tool-less access, and cable management options to simplify maintenance and improve reliability.
  7. Brand Reputation: Opt for reputable manufacturers known for quality, reliability, and support to minimize downtime and ensure long-term performance.

Pro Tips for IT Professionals:

  • Thoroughly assess your specific workload and hardware requirements before selecting a chassis.
  • Pay close attention to compatibility with your motherboard, expansion cards, and other components.
  • Factor in future scalability needs when choosing a chassis to avoid costly upgrades down the line.
  • Consult with IT experts or refer to detailed product specifications to make an informed decision.

Bestselling Server Chassis Reviews:

Anonymous
2/18/2026 3:21:35 PM
Great budget 2U chassis

“ Really great 2U chassis for the price. ”

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 | Silver/Black - RSV-Z2600U
Anonymous
10/17/2025 7:22:05 AM
Sturdy Case

“ Supermicro makes great and sturdy cases. ”

Supermicro Case CSE-731I-404B Mini-tower chassis 2x5.25" External HDD Drive Bays and 4x 3.5" Internal HDD Drive Bays 400W
George B.
9/11/2025 7:31:14 AM
Amazing 2U case.

“ I usually build in 4U cases, but this was a very well designed 2U case making the build process very easy. ”

Rosewill 2U Server Chassis Rackmount Case | 4 x 3.5"/2.5" HDD, 1 x 5.25" Device | Micro-ATX Compatible | 2 x 80mm PWM Fans | 2 x USB 3.0 | Silver/Black - RSV-Z2700U
tim1724
5/20/2025 7:23:19 PM
Well built, flexible for wide array of applications

“ My main reason for choosing it was that I needed a cheap GPU server using consumer grade cards (Geforce RTX 3090) which don't fit in a typical server chassis. ”

SUPERMICRO SuperChassis CSE-745BAC-R1K23B 4U Tower Server Chassis
Michael M.
4/11/2025 4:03:16 AM
Good case, especially when on sale - RSV-L4000U

“ There's not a lot of info from Rosewill about this case and what you can fit in it. ”

Rosewill 4U Server Chassis Rackmount Case | 8 x 3.5" HDD Bays + 3 x 5.25" Devices | E-ATX Compatible | 5 x Front 120mm Fans | 2 x Rear 80mm Fans | 2 x USB 3.0 | Front Panel Lock | Silver/Black - RSV-L4000U
Anonymous
4/6/2025 12:51:34 PM
Great chasis for ATX rack mounted server/pc

“ A large PC style ATX PSU will likely extend over the CPU socket (I was using a 1600w seasonic); meaning you will have to use an AIO/water cooling setup for the CPU, or at a minimum a 2u height cooler (this is on an ATX MB). ”

Rosewill 4U Server Chassis | Supports up to 4 GPUs | 8 Hot-Swap 3.5"/2.5" SATA/SAS up to 12Gbps | E-ATX Compatible | 3 x 12038 Hot-Swap Fans | 2 x Rear 8038 Fans | USB 3.2 Type-C | With Rail Kit | Ideal for AI Servers
Benjamin A.
9/11/2024 6:05:59 PM
Pretty solid DIY NAS case

“ Cheaper than SuperMicro chassis ”

SilverStone Technology CS351 5-Bay SAS-12G / SATA-6G hot-swappable high Performance NAS Chassis, SST-CS351
Robert W.
5/23/2024 12:11:57 AM
Great case for my first homelab.

“ This was my first build with a server chassis and i gotta say, aside from the not having a manual in the box if was all simple and self explanatory if youve built cases before. ”

iStarUSA D406-DE8BK Black 4U Rackmount Compact Stylish Server Case