TodayToday's edition
45 specs listed, 33 of them differ. Each value is the maker's own; nothing is converted or scored.
| Field | Supermicro Supermicro SYS-521R-T | Supermicro Supermicro SYS-531A-I |
|---|---|---|
| Part number | SYS-521R-T | SYS-531A-I |
| Specs, as each maker lists them | ||
| CPU | Single processor(s), Intel® Xeon® E-2400 series Processors and 12th Gen. Pentium® Processors | Single processor(s), Intel® Xeon® W-2500/W-2400 processors |
| Memory | Slot Count: 2 DIMM slots, Max Memory (1DPC): Up to 64GB 4800MT/s ECC DDR5 UDIMM | Slot Count: 8 DIMM slots, Max Memory (2DPC): Up to 1TB 4800MT/s ECC DDR5 RDIMM/LRDIMM |
| Core Count | Up to 8C/16T | Up to 26C/52T; Up to 48.75MB Cache |
| Motherboard | Super X13SCL-IF | Super X13SRA-TF |
| Processor Note | Supports up to 80W TDP CPUs (Air Cooled) | Supports up to 250W TDP CPUs (Air Cooled) |
| Chassis - Model | CSE-721TQ-350B2 | CSE-735D4-1K26B |
| Front Panel - LED | Fan Fail/System Over Heat LED, HDD activity LED, Network activity LEDs, Power status LED | HDD activity LED |
| Operating Systems | Oracle Linux 9.2, RHEL 9.2, Windows Server 2022, Windows Server 2025 | RHEL 9.0, Windows 11 |
| Front Panel - Port | USB 3.0 Port(s) | Not listed |
| Default Power Supply | 1x 350W Gold Level (92%) power supply | 1x 1200W Platinum Level (94%) power supply |
| Input / Output - USB | 2 USB 3.2 Gen1 Type-A ports (rear), 2 USB 2.0 Type-A ports (rear), 2 USB 3.2 Gen1 Type-A ports (front) | 2 USB 3.2 Gen1 Type-A ports (front), 4 USB 3.2 Gen2 Type-A ports (Rear), 1 USB 3.2 Gen2 Type-C port (Rear), 1 USB 3.2 Gen2 Type-C port (Front) |
| Chassis - Form Factor | Compact Mini-Tower | Mid-Tower |
| Front Panel - Buttons | Power On/Off button, System Reset button | Power On/Off button |
| System Cooling - Fans | Up to 1x 120mm Fan(s) | Up to 1x 120mm Fan(s), Up to 1x 120mm Fan(s) |
| Drive Bays / Storage - M.2 | 1 M.2 PCIe 4.0 x4 NVMe slot (M-key 2280) | 2 M.2 PCIe 5.0 x4 NVMe slots (M-key 2280/22110) |
| Default Power Supply - +12V | Max: 28A / Min: 0.1A (100Vac-240Vac) | Max: 83A / Min: 1A (100Vac-120Vac), Max: 99A / Min: 1A (120Vac-240Vac) |
| Default Power Supply - 5V SB | Max: 2A / Min: 0.05A | Max: 3A / Min: 0A |
| Default Power Supply - Input | 350W: 100-240Vac / 50-60Hz | 1000W: 100-120Vac / 50-60Hz, 1200W: 120-240Vac / 50-60Hz |
| Default Power Supply - Certification | Gold Level | Platinum Level |
| Chassis Dimensions and Weight - Depth | 11" (279.4 mm) | 20.68" (525.3 mm) |
| Chassis Dimensions and Weight - Width | 8.27" (210.06 mm) | 7.6" (193 mm) |
| Chassis Dimensions and Weight - Height | 9.45" (240.03 mm) | 16.7" (424 mm) |
| Chassis Dimensions and Weight - Weight | Gross Weight: 15 lbs (6.8 kg), Net Weight: 13.5 lbs (6.12 kg) | Gross Weight: 30 lbs (13.61 kg), Net Weight: 27 lbs (12.25 kg) |
| Drive Bays / Storage - Peripheral Bays | 1 bay | 2 5.25" bays |
| Chassis Dimensions and Weight - Package | 13.78" (H) x 12.4" (W) x 16.14" (D) | 21.38" (H) x 11.97" (W) x 25.28" (D) |
| On-Board Devices - Network Connectivity | 1 RJ45 1GbE with Realtek RTL8211F PHY (dedicated IPMI), 2 RJ45 1GbE with Intel® I210 | 1 RJ45 10GbE with Marvell® AQC113, 1 RJ45 1GbE with Intel® I210-AT |
| Default Power Supply - Dimension (WxHxL) | 81.5 x 40.5 x 150 mm | 150 x 86 x 185 mm |
| Drive Bays / Storage - Drive Bays Configuration | Default: Total 4 bays; 4 front hot-swap 3.5" PCIe 4.0 x4 NVMe*/SAS*/SATA drive bays | (*NVMe/SAS support may require additional storage controller and/or cables | Default: Total 4 bays; 4 internal fixed 3.5" SATA drive bays |
| Expansion Slots - PCI-Express (PCIe) Configuration | Default: 1 PCIe 5.0 x16 HHHL slot | Default: 1 PCIe 4.0 x4 FHFL slot, 3 PCIe 5.0 x16 FHFL slots |
| Max GPU Count | Not listed | Up to 2 double-width GPUs |
| Supported GPU | Not listed | NVIDIA PCIe: A1000, NVIDIA RTX PRO™ 6000 Blackwell Max-Q Workstation Edition, RTX 2000 Ada, RTX 4000 Ada Generation, RTX 4500 Ada, RTX 5000 Ada, RTX 6000 Ada Ge |
| Input / Output - Audio | Not listed | 7.1 HD Audio |
| Input / Output - Serial | Not listed | 1 COM port (rear) |
Shaded rows differ. Rows are matched by their label, so two makers' names for the same figure can sit on separate rows; hover a value to see its maker's own label where it differs.