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$2,645.00
SYS-521C-NR

SYS-521C-NR

Supermicro 2U 12Bays Single Processor Rackmount Server
 
  • Single Socket E (LGA-4677) 4th/5th Gen Intel®  Xeon® Scalable processors. Up to 350W TDP
  • Intel® C741 Chipset
  • 16 DIMMs; Supports 3DS DDR5 RDIMM. Up to 5600 MHz
  • Single AIOM with NCSI (OCP 3.0) for networking, 1 dedicated IPMI LAN
  • 12x front hot-swap 3.5" SATA3 drive bays (Optional 2 hybrid Gen5 NVMe), SAS3 with additional SAS controller card
  • Redundant Titanium 1200W Power Supplies
  • Cloud Computing, Data Center Optimized, Network Appliance, AI inferencing, ML training, Database/Storage
 
Storage configuration notice:
External:
12x 3.5" Hot-swap HDD Bays
2x M.2
To maintain quality and integrity, this product is sold only as a completely-assembled system (with minimum 1 CPUs, 2 DIMMs, 1 Expansion Slot/AIOM NIC and 1 Drive). 

Note: Image above may show a varied configuration or optional part. Please refer to parts list for standard parts included.

Configure Options

CPU ▼
Qty / Pick Option Price
Intel® Xeon® Scalable 4th Gen Silver Processor 4416+ (2.00 GHz 165W)
Intel® Xeon® Scalable 4th Gen Silver Processor 4410Y (2.00 GHz 155W)
Intel® Xeon® Scalable 4th Gen Silver Processor 4410T (2.70 GHz 150W)
Intel® Xeon® Scalable 4th Gen Gold Processor 6448H (2.40 GHz 250W)
Intel® Xeon® Scalable 4th Gen Gold Processor 6438Y (2.00 GHz 205W)
Intel® Xeon® Scalable 4th Gen Gold Processor 6430 (2.10 GHz 270W)
Intel® Xeon® Scalable 4th Gen Gold Processor 6428N (1.80 GHz 185W)
Intel® Xeon® Scalable 4th Gen Gold Processor 6421N (1.80 GHz 185W)
Intel® Xeon® Scalable 4th Gen Gold Processor 5418N (1.80 GHz 165W)
Intel® Xeon® Scalable 4th Gen Gold Processor 5416S (2.00 GHz 150W)
Intel® Xeon® Scalable 4th Gen Gold Processor 5411N (1.90 GHz 165W)
Intel® Xeon® Scalable 4th Gen Platinum Processor 8490H (1.90 GHz 350W)
Intel® Xeon® Scalable 4th Gen Platinum Processor 8480+ (2.0 GHz 350W)
Intel® Xeon® Scalable 4th Gen Platinum Processor 8470N (1.70 GHz 300W)
Intel® Xeon® Scalable 4th Gen Platinum Processor 8470 (2.00 GHz 350W)
Intel® Xeon® Scalable 4th Gen Platinum Processor 8468V (2.40 GHz 330W)
Intel® Xeon® Scalable 4th Gen Platinum Processor 8468H (2.10 GHz 330W)
Intel® Xeon® Scalable 4th Gen Platinum Processor 8468 (2.10 GHz 350W)
Intel® Xeon® Scalable 4th Gen Platinum Processor 8462Y+ (2.80 GHz 300W)
Intel® Xeon® Scalable 4th Gen Platinum Processor 8460Y+ (2.20 GHz 300W)
Intel® Xeon® Scalable 4th Gen Platinum Processor 8460H (2.20 GHz 330W)
Intel® Xeon® Scalable 4th Gen Platinum Processor 8458P (2.70 GHz 350W)
Intel® Xeon® Scalable 4th Gen Platinum Processor 8454H (2.10 GHz 270W)
Intel® Xeon® Scalable 4th Gen Platinum Processor 8452Y (2.00 GHz 300W)
Intel® Xeon® Scalable 4th Gen Platinum Processor 8450H (2.00 GHz 250W)
Intel® Xeon® Scalable 4th Gen Platinum Processor 8444H (2.90 GHz 270W)
Intel® Xeon® Scalable 5th Gen Bronze Processor 3508U (2.10 Ghz 125W)
Intel® Xeon® Scalable 5th Gen Silver Processor 4509Y (2.60 Ghz 125W)
Intel® Xeon® Scalable 5th Gen Silver Processor 4510 (2.40 Ghz 150W)
Intel® Xeon® Scalable 5th Gen Silver Processor 4510T (2.00 Ghz 115W)
Intel® Xeon® Scalable 5th Gen Silver Processor 4514Y (2.00 Ghz 150W)
Intel® Xeon® Scalable 5th Gen Silver Processor 4516Y+ (2.20 Ghz 185W)
Intel® Xeon® Scalable 5th Gen Gold Processor 5512U (2.10 Ghz 185W)
Intel® Xeon® Scalable 5th Gen Gold Processor 5515+ (3.20 Ghz 165W)
Intel® Xeon® Scalable 5th Gen Gold Processor 5520+ (2.20 Ghz 205W)
Intel® Xeon® Scalable 5th Gen Gold Processor 6526Y (2.80 Ghz 195W)
Intel® Xeon® Scalable 5th Gen Gold Processor 6530 (2.10 Ghz 270W)
Intel® Xeon® Scalable 5th Gen Gold Processor 6534 (3.90 Ghz 195W)
Intel® Xeon® Scalable 5th Gen Gold Processor 6538N (2.10 Ghz 205W)
Intel® Xeon® Scalable 5th Gen Gold Processor 6538Y+ (2.10 Ghz 205W)
Intel® Xeon® Scalable 5th Gen Gold Processor 6542Y (2.90 Ghz 250W)
Intel® Xeon® Scalable 5th Gen Gold Processor 6544Y (3.60 Ghz 270W)
Intel® Xeon® Scalable 5th Gen Gold Processor 6548N (2.80 Ghz 250W)
Intel® Xeon® Scalable 5th Gen Gold Processor 6548Y+ (2.50 Ghz 250W)
Intel® Xeon® Scalable 5th Gen Gold Processor 6554S (2.20 Ghz 270W)
Intel® Xeon® Scalable 5th Gen Gold Processor 6558Q (3.20 Ghz 350W)
Intel® Xeon® Scalable 5th Gen Platinum Processor 8558 (2.10 Ghz 330W)
Intel® Xeon® Scalable 5th Gen Platinum Processor 8558P (2.70 Ghz 350W)
Intel® Xeon® Scalable 5th Gen Platinum Processor 8558U (2.00 Ghz 300W)
Intel® Xeon® Scalable 5th Gen Platinum Processor 8562Y+ (2.80 Ghz 300W)
Intel® Xeon® Scalable 5th Gen Platinum Processor 8568Y (2.30 Ghz 350W)
Intel® Xeon® Scalable 5th Gen Platinum Processor 8570 (2.10 Ghz 350W)
Intel® Xeon® Scalable 5th Gen Platinum Processor 8571N (2.40 Ghz 300W)
Intel® Xeon® Scalable 5th Gen Platinum Processor 8580 (2.00 Ghz 350W)
Intel® Xeon® Scalable 5th Gen Platinum Processor 8581V (2.00 Ghz 270W)
Intel® Xeon® Scalable 5th Gen Platinum Processor 8592+ (1.90 Ghz 350W)
Intel® Xeon® Scalable 5th Gen Platinum Processor 8592V (2.00 Ghz 330W)
MEMORY ▼
Qty / Pick Option Price
Samsung 16GB DDR5 5600MHz ECC RDIMM Memory (Recommend for Xeon 5th Gen CPU)
Samsung 32GB DDR5 5600MHz ECC RDIMM Memory (Recommend for Xeon 5th Gen CPU)
Samsung 64GB DDR5 5600MHz ECC RDIMM Memory (Recommend for Xeon 5th Gen CPU)
NETWORK CARD ▼
Qty / Pick Option Price
Intel® 1G Ethernet Adapter I350-T2V2 (2x RJ-45)
Intel® 1G Ethernet Adapter I350-T4V2 (4x RJ-45)
Intel® 10G Ethernet Adapter X710-DA2 (2x QSFP+)
Intel® 40G Ethernet Adapter XL710-QDA1 (1x QSFP+)
Intel® 40G Ethernet Adapter XL710-QDA2 (2x QSFP+)
Intel® 10G Ethernet Adapter X550-T1 (1x RJ45)
Intel® 10G Ethernet Adapter X550-T2 (2x RJ45)
Intel® 25G Ethernet Adapter XXV710-DA1 (1x SFP28)
Intel® 25G Ethernet Adapter XXV710-DA2 (2x SFP28)
Intel® 10G Ethernet Adapter X520-DA2 (2x SFP+)
Mellanox NVIDIA 10/25GbE MCX512A-ACAT ConnectX-5 Ethernet Adapter (2x QSFP28)
Mellanox NVIDIA 100GbE MCX516A-CCAT ConnectX-5 Ethernet Adapter (2x QSFP28)
Mellanox NVIDIA 200GbE MCX653105A-HDAT-SP ConnectX-6 VPI Ethernet Adapter (1x QSFP56)
Mellanox NVIDIA 200GbE MCX653106A-HDAT-SP ConnectX-6 VPI Ethernet Adapter (2x QSFP56)
Broadcom NetXtreme 1G PCIe 2.0 x1 Ethernet Card (2x RJ45)
Broadcom NetXtreme 1G PCIe 2.0 x4 Ethernet Card (4x RJ45)
Broadcom NetXtreme 10G PCIe 3.0 x8 Ethernet Card (2x RJ45)
Broadcom NetXtreme 10G PCIe 3.0 x8 Ethernet Card (2x SFP+)
Broadcom NetXtreme 25G PCIe 3.0 x8 Ethernet Card (2x SFP28)
Broadcom NetXtreme 25G PCIe 4.0 x16 Ethernet Card (4x SFP28)
Broadcom NetXtreme 100G PCIe 4.0 x16 EthernetCard (2x QSFP56)
OPERATING SYSTEM ▼
Qty / Pick Option Price
*Please contact our sales for more operating system options
Debian Linux (No Media) (32-Bit/64-Bit)
Fedora Linux Desktop Edition (No Media) (32-Bit/64-Bit)
Ubuntu Linux LTS Server Edition (No Media) (32-Bit/64-Bit)
CentOS Enterprise Linux (No Media) (32-Bit/64-bit)
Fedora Linux Workstation Edition 64-bit (No Media)
Microsoft Windows Server 2025 Standard 64-bit-1User
WARRANTY ▼
Qty / Pick Option Price
*1 Year Parts Replacement Warranty
3 Year Parts Replacement Warranty - Server Value $500 to $2000
3 Year Parts Replacement Warranty - Server Value $2001 to $4000
3 Year Parts Replacement Warranty - Server Value $4001 to $7000
3 Year Parts Replacement Warranty - Server Value $7001 to $10000
3 Year Parts Replacement Warranty - Server Value Over $10000
RAID CONTROLLER CARD ▼
Qty / Pick Option Price
*NO RAID Controller Card
LSI 9560-16I TRI MODE NVMe RAID CONTROLLER
Areca ARC-1886-16i 16 Ports SAS/SATA/NVMe RAID Controller Card
Areca ARC-1886-4x12i 4+12 Ports SAS/SATA/NVMe RAID Controller Card
(Optional) Enterprise-Class HDD/SSD ▼
Qty / Pick Option Price
WD Ultrastar 3.5" SATA 6Gb/s 7200 RPM HDD 2TB
WD Ultrastar 3.5" SATA 6Gb/s 7200 RPM HDD 4TB
WD Ultrastar 3.5" SATA 6Gb/s 7200 RPM HDD 10TB
WD Ultrastar 3.5" SAS 12Gb/s 7200 RPM HDD 6TB
WD Ultrastar 3.5" SAS 12Gb/s 7200 RPM HDD 4TB
WD Ultrastar 3.5" SATA 6Gb/s 7200 RPM HDD 6TB
WD Ultrastar 3.5" SAS 12Gb/s 7200 RPM HDD 8TB
WD Ultrastar 3.5" SAS 12Gb/s 7200 RPM HDD 10TB
WD Ultrastar 3.5" SAS 12Gb/s 7200 RPM HDD 12TB
WD Ultrastar 3.5" SAS 12Gb/s 7200 RPM HDD 14TB
Seagate Exos 3.5" SATA 6GB/s 7200 RPM HDD 2TB
Seagate Exos 3.5" SATA 6GB/s 7200 RPM HDD 4TB
Seagate Exos 3.5" SATA 6GB/s 7200 RPM HDD 6TB
Seagate Exos 3.5" SATA 6GB/s 7200 RPM HDD 8TB
Seagate Exos 3.5" SATA 6GB/s 7200 RPM HDD 10TB
Seagate Exos 3.5" SATA 6GB/s 7200 RPM HDD 12TB
Seagate Exos 3.5" SATA 6GB/s 7200 RPM HDD 14TB
Seagate Exos 3.5" SATA 6GB/s 7200 RPM HDD 16TB
Seagate Exos 3.5" SATA 6GB/s 7200 RPM HDD 18TB
Seagate Exos 3.5" SAS 12Gb/s 7200 RPM HDD 2TB
Seagate Exos 3.5" SAS 12Gb/s 7200 RPM HDD 4TB
Seagate Exos 3.5" SAS 12Gb/s 7200 RPM HDD 6TB
Seagate Exos 3.5" SAS 12Gb/s 7200 RPM HDD 8TB
Seagate Exos 3.5" SAS 12Gb/s 7200 RPM HDD 10TB
Seagate Exos 3.5" SAS 12Gb/s 7200 RPM HDD 12TB
Seagate Exos 3.5" SAS 12Gb/s 7200 RPM HDD 14TB
Seagate Exos 3.5" SAS 12Gb/s 7200 RPM HDD 16TB
Seagate Exos 3.5" SAS 12Gb/s 7200 RPM HDD 18TB
WD Ultrastar 3.5" SATA 6Gb/s 7200 RPM HDD 8TB
WD Ultrastar 3.5" SATA 6Gb/s 7200 RPM HDD 12TB
WD Ultrastar 3.5" SATA 6Gb/s 7200 RPM HDD 14TB
WD Ultrastar 3.5" SATA 6Gb/s 7200 RPM HDD 16TB
WD Ultrastar 3.5" SATA 6Gb/s 7200 RPM HDD 18TB
WD Ultrastar 3.5" SAS 12Gb/s 7200 RPM HDD 16TB
WD Ultrastar 3.5" SAS 12Gb/s 7200 RPM HDD 18TB
Samsung PM9A3 2.5" U.2 NVMe SSD 960GB
Samsung PM9A3 2.5" U.2 NVMe SSD 1.92TB
Samsung PM9A3 2.5" U.2 NVMe SSD 3.84TB
Samsung PM9A3 2.5" U.2 NVMe SSD 7.68TB
Samsung PM9A3 2.5" U.2 NVMe SSD 15TB
WD Ultrastar 3.5" SAS 12Gb/s 7200 RPM HDD 20TB
WD Ultrastar 3.5" SAS 12Gb/s 7200 RPM HDD 22TB
WD Ultrastar 3.5" SATA 6Gb/s 7200 RPM HDD 20TB
WD Ultrastar 3.5" SATA 6Gb/s 7200 RPM HDD 22TB
Seagate Exos 3.5" SATA 6GB/s 7200 RPM HDD 20TB
Seagate Exos 3.5" SAS 12Gb/s 7200 RPM HDD 20TB
NVMe M.2 ▼
Qty / Pick Option Price
*No NVMe M.2 Drives
Samsung 980 PRO MZ-V8P500B/AM M.2 NVMe SSD 500GB
Samsung 980 PRO MZ-V8P1T0B/AM M.2 NVMe SSD 1TB
Samsung 970 EVO Plus MZ-V7S1T0B/AM M.2 NVMe SSD 1TB
Samsung 970 EVO Plus MZ-V7S2T0B/AM M.2 NVMe SSD 2TB
Samsung 980 PRO MZ-V8P2T0B/AM M.2 NVMe SSD 2TB
Samsung 970 EVO Plus MZ-V7S500B/AM M.2 NVMe SSD 500GB
WD Black SN850 M.2 G4 NVMe SSD 500GB
WD Black SN850 M.2 G4 NVMe SSD 1TB
WD Black SN850 M.2 G4 NVMe SSD 2TB
SAMSUNG PM9A3 M.2 Nvme SSD 960GB
SAMSUNG PM9A3 M.2 Nvme SSD 1.92TB
SAMSUNG PM9A3 M.2 Nvme SSD 3.84TB
Samsung 990 PRO MZ-V9P1T0B/AM M.2 NVMe SSD 1TB
Samsung 990 PRO MZ-V9P2T0B/AM M.2 NVMe SSD 2TB
Samsung 970 EVO Plus MZ-V7S500B/AM M.2 NVMe SSD 250GB

Technical Specifications

Processor
CPU:
Single Socket E (LGA-4677)
5th Gen Intel® Xeon® / 4th Gen Intel® Xeon® Scalable processors

Core Count:
Up to 64C/128T; Up to 320MB Cache

Note:
Supports up to 350W TDP CPUs (Air Cooled)
Memory
Memory:
Slot Count: 16 DIMM slots/8 Channels
Max Memory (1DPC): Up to 2TB 5600MT/s ECC DDR5 RDIMM
Max Memory (2DPC): Up to 4TB 4400MT/s ECC DDR5 RDIMM

Memory Voltage:
1.1 V
Chassis
2U Rackmount Chassis
Dimensions
Height:
3.5" (89mm)
Width:
17.2" (437mm)
Depth:
25.5" (648mm)
Drive Bays
Drive Bays:
12x 3.5" NVMe/SATA/SAS drive bays (2x 3.5" NVMe hybrid)

M.2:
2x PCIe 3.0 x 2
M-key, 2280, 22110
Expansion Slots
PCI-Express (PCIe):
4 PCIe 5.0 x8 FHFL slot(s)
2 PCIe 5.0 x16 FHHL slot(s)

Note:
AIOM slot shares PCIe lanes with NVMe drives. Acronyms: (FH = Full Height, LP = Low Profile, FL = Full Length, HL = Half Length)
Power Supply
1U 1200W/1000W Titanium Power Supply W/PMbus W76xL336xH40mm
Dimension (W x H x L):
76 x 40 x 336 mm

AC Input:
1000W: 100-127Vac / 15A-12A / 50-60Hz
1200W: 200-240Vac / 8.5A-7A / 50-60Hz

+12V:
Max: 83A / Min: 0A (100Vac-127Vac)
Max: 100A / Min: 0A (200Vac-240Vac)

5V SB:
Max: 4A / Min: 0A

Output Type:
19 Pairs Gold Finger Connector

Certification:
Titanium Level
Onboard Devices
SATA:
SATA3 (6Gbps); RAID 0/1/5/10 support

NVMe:
NVMe

Chipset:
Intel® C741

Network Connectivity:
Via AIOM & AOC

IPMI:
Support for Intelligent Platform Management Interface v.2.0
IPMI 2.0 with virtual media over LAN and KVM-over-LAN support
Front Panel
Buttons:
Power On/Off
Universal Information (UID)

LEDs:
Drive activity
Network activity
Power status
Universal Information (UID)
Input / Output
SATA:
12 SATA (6Gbps) port(s)

LAN:
1 RJ45 Dedicated IPMI LAN port

USB:
2 USB 2.0 port(s) (2 headers)
2 USB 3.2 Gen 1 port(s) (2 rear)

Video:
1 VGA port(s)

Serial Port:
1 COM Port(s) (1 rear)
Cooling
3 heavy duty PWM 80x80x38mm Fan(s)
BIOS
BIOS Type:
AMI 32MB SPI Flash EEPROM
Operating Environment
Operating Temperature:
   10°C ~ 35°C (50°F ~ 95°F)
Non-operating Temperature:
   -30°C to 60°C (-22°F to 140°F)
Operating Relative Humidity:
   8% to 80% (non-condensing)
Non-operating Relative Humidity:
   8% to 90% (non-condensing)
Detailed Specification
Management
Software:
Supemicro Out of Band (OOB) License (Included per Node)
SuperCloud Composer
IPMI2.0
Redfish API
SSM
Intel® Node Manager
SPM
KVM with dedicated LAN
SUM
NMI
Power Configurations:
ACPI/APM Power Management

Frequently Asked Questions

Yes. Spectrum Servers offers custom configurations for all server products. Use the Configure Options section above to select processors, memory, storage and other components, or request a custom quote.

All products sold by Spectrum Servers include the manufacturer's standard warranty. Extended warranty options are available. Contact our sales team at sales@spectrumservers.com or call +1 (626) 956-0100 for details.

Lead times vary by product and configuration. In-stock items typically ship within 1–3 business days. Custom configured systems may take 5–15 business days. Contact us for specific availability and lead time information.

Yes. Spectrum Servers provides technical support for all products sold. Our engineers are available Monday–Friday 8:30AM–5:30PM PST. Reach us at +1 (800) 526-8650 or email sales@spectrumservers.com.

Yes. Volume discounts are available for orders of 5 or more units. Please request a quote or contact our sales team directly for pricing on larger orders.
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