Supermicro GPU SuperServer SYS-821GE-TNHR
The Supermicro SYS-821GE-TNHR is an 8U AI supercomputer powered by an 8-way NVIDIA HGX H100 SXM5 baseboard interconnected with NVLink. Combining dual 4th or 5th Gen Intel Xeon Scalable processors, 32 DDR5 memory channels, 24 front NVMe drive bays, and six 3000W Titanium power supplies, it delivers peak computational scale for foundation model training.
Specifications
| Brand | Supermicro |
|---|---|
| Family | GPU SuperServer |
| Form factor | 8U rack |
| Released | Jun 2023 |
| Form factor | 8U rack |
| Sockets | 2 |
| Processor family | Intel Xeon Scalable (4th/5th Gen) |
| Memory slots | 32 |
| Max memory | 8TB DDR5-5600 |
| Gpu support | 8-way NVIDIA HGX H100 / H800 / H20 SXM5 |
| Drive bays | 24x 2.5-inch hot-swap NVMe U.2 |
| Power supplies | 6x 3000W Redundant Titanium |
Compatible parts
Risers
AOM-DP801-PCIE-P Supermicro AOM-DP801-PCIE-P: NIC Riser board (After Mid-Plane) for Delta-Next GPU System
Network adapters
AOM-DP801-SW-P Supermicro AOM-DP801-SW-P: NIC adaptor board with PLX switch for Delta-Next GPU system
Drive caddies
MCP-220-00147-0B Supermicro MCP-220-00147-0B: Black gen 3 hot-swap 2.5" Tool-less HDD tray, red tab
Power supplies
PWS-3K06G-2R Supermicro PWS-3K06G-2R: AC-DC 3000W, Titanium efficiency, DC output: 54Vdc/45A
Works together
How the Supermicro GPU SuperServer SYS-821GE-TNHR connects to servers, storage and the network: 5 ways, with the parts and products on each path.
Fibre Channel SAN
Match the speed: 16Gb and 32Gb FC HBAs, switches and array ports work together, and each generation also runs one or two speeds below its own (a 32Gb port runs at 16Gb and 8Gb).
Switches
Cisco MDS 9396V 2RU
Cisco MDS 9124V 1U rack
Cisco MDS 9148V 1RU
Dell Connectrix DS-7730B 2U switch
Storage
HPE Alletra Storage MP 2U rack
Lenovo ThinkSystem DE6400F 2U rack
Lenovo ThinkSystem DE6400H 2U rack
Lenovo ThinkSystem DE6600F 2U rack
Lenovo ThinkSystem DE6600H 2U rack
Lenovo ThinkSystem DM3010H 2U rack
Optics
57-1000262-01 Brocade 16G FC SFP+ ELWL 25 km
57-1000333-01 Brocade 32G FC SFP+ SWL
57-1000487-01 Brocade 16G FC SFP+ SWL
iSCSI and NVMe/TCP over Ethernet
Keep the speed the same at all three points: a 25GbE server, a 25GbE switch port and a 25GbE array port. Mixed speeds work but the slowest link sets the pace.
Adapters for the server (check the fit list)
AOC-A100G-B2CM Supermicro AOC-A100G-b2CM: OCP 3.0 AIOM 2x 100GbE QSFP28 PCIe 4.0 x16 Broadcom BCM57508
AOC-A25G-B2S-P Supermicro AOC-A25G-B2S-P: AIOM 2-port 25GbE SFP28, Broadcom BCM57414
AOC-A25G-B2SM Supermicro AOC-A25G-b2SM: OCP 3.0 AIOM 2x 25GbE SFP28 PCIe x8 Intel E810-XXVAM2
AOC-A25G-I2SM Supermicro AOC-A25G-i2SM: OCP 3.0 AIOM 4x 25GbE SFP28 PCIe x8 Intel E810-CAM1
Switches
Arista 7060X6-32D 1U fixed switch
Dell PowerSwitch Z9664F-ON 2U switch
HPE Aruba CX 8100 1U fixed switch
Cisco Nexus 9332D-GX2B 1U fixed switch
Storage
HPE Alletra Storage MP 2U rack
Lenovo ThinkSystem DE6400H 2U rack
Lenovo ThinkSystem DE6600H 2U rack
Lenovo ThinkSystem DM3010H 2U rack
Pure Storage FlashArray //X50 R4 3U rack
Pure Storage FlashArray //X70 R4 3U rack
Optics
QSFP-100G-CWDM4-AR Arista 100GBASE-CWDM4 QSFP28 Optical Transceiver Module
QSFP-100G-LR4-AR Arista 100GBASE-LR4 QSFP28 Optical Transceiver Module
QSFP-100G-SR4 Arista 100GBASE-SR4 QSFP28 Optical Transceiver
Direct-attached SAS
12Gb SAS uses Mini-SAS HD (SFF-8644) connectors; older 6Gb gear uses Mini-SAS (SFF-8088). Adapter cables exist, but the link runs at the slower speed.
Adapters for the server (check the fit list)
AOC-S3008L-L8E Supermicro AOC-S3008L-L8E: Standard LP, 8 internal ports (12Gb/s) Gen-3; HBA
Storage
Lenovo ThinkSystem DE6400H 2U rack
Lenovo ThinkSystem DE6600H 2U rack
Dell PowerVault ME5012 2U rack
Dell PowerVault ME5024 2U rack
Dell PowerVault ME5084 5U rack
Lenovo ThinkSystem DE4200H 2U rack
File storage (NFS and SMB)
Front-end ports face the clients; back-end ports (on scale-out systems) connect the nodes to each other and need their own switch pair.
Adapters for the server (check the fit list)
AOC-A100G-B2CM Supermicro AOC-A100G-b2CM: OCP 3.0 AIOM 2x 100GbE QSFP28 PCIe 4.0 x16 Broadcom BCM57508
AOC-A25G-B2S-P Supermicro AOC-A25G-B2S-P: AIOM 2-port 25GbE SFP28, Broadcom BCM57414
AOC-A25G-B2SM Supermicro AOC-A25G-b2SM: OCP 3.0 AIOM 2x 25GbE SFP28 PCIe x8 Intel E810-XXVAM2
AOC-A25G-I2SM Supermicro AOC-A25G-i2SM: OCP 3.0 AIOM 4x 25GbE SFP28 PCIe x8 Intel E810-CAM1
Switches
Arista 7060X6-32D 1U fixed switch
Dell PowerSwitch Z9664F-ON 2U switch
HPE Aruba CX 8100 1U fixed switch
Cisco Nexus 9332D-GX2B 1U fixed switch
Storage
HPE Alletra Storage MP 2U rack
Lenovo ThinkSystem DM3010H 2U rack
NetApp AFF C250 2U rack
NetApp FAS Series FAS2820 2U rack
Pure Storage FlashArray //E 3U rack
Lenovo ThinkSystem DG5000 2U rack
Optics
QSFP-100G-CWDM4-AR Arista 100GBASE-CWDM4 QSFP28 Optical Transceiver Module
QSFP-100G-LR4-AR Arista 100GBASE-LR4 QSFP28 Optical Transceiver Module
QSFP-100G-SR4 Arista 100GBASE-SR4 QSFP28 Optical Transceiver
GPU cluster fabric
InfiniBand adapters and switches must match the generation: HDR is 200Gb, NDR is 400Gb. VPI adapters such as ConnectX-6 and ConnectX-7 can run either InfiniBand or Ethernet.
GPUs
NVIDIA Data Center GPU H100 PCIe 80GB PCIe 5.0 dual-slot full-height full-length
NVIDIA Data Center GPU H800 SXM5 80GB SXM5 module
NVIDIA Data Center GPU H100 SXM5 80GB SXM5 module
NVIDIA Data Center GPU H20 SXM5 module or PCIe
Adapters for the server (check the fit list)
AOC-IBH-X4ES-B Supermicro AOC-IBH-X4ES-B: Mezzanine card, InfiniBand EDR Single Port based on ConnectX-4
AOC-MCX456A-ECAT Supermicro AOC-MCX456A-ECAT: 2 Port 100G QSFP28 PCI-E x16 EDR IB card, based on Mellanox ConnectX-4 VPI
AOC-MCX555A-ECAT Supermicro AOC-MCX555A-ECAT: Standard LP, 1x 100GbE (and EDR IB) QSFP28, PCI-E x16, Mellanox ConnectX-5
AOC-MCX556A-ECAT Supermicro AOC-MCX556A-ECAT: Standard LP, 2x 100GbE (and EDR IB) QSFP28, PCI-E x16, Mellanox ConnectX-5
Switches
Arista 7060X6-32D 1U fixed switch
Dell PowerSwitch Z9664F-ON 2U switch
Cisco Nexus 9332D-GX2B 1U fixed switch
Cisco Nexus 9364D-GX2A 2U fixed switch
Plan and size it
- Draw this setup in the topology planner mrplanb.com
- Add up rack power and space rack-density.com
- Virtualization storage Ledger: scored storage platforms mrplanb.com
- SAN transport and NVMe over FC for backup mrplanb.com
Check compatibility with Supermicro
Before you buy, confirm the exact configuration against the vendor's own lists: firmware levels, operating systems, adapters and optics that Supermicro has tested with the Supermicro GPU SuperServer SYS-821GE-TNHR.
- Compatibility Supermicro tested memory, drives and add-on cards (per system page)
- Support Supermicro Support
Equivalent models from other brands
- Dell PowerEdge XE9680 · compare
- Lenovo ThinkSystem SR675 V3 · compare
- HPE ProLiant DL380 Gen11 · compare
FAQ
What is the GPU interconnect bandwidth in the SYS-821GE-TNHR?
The 8-way NVIDIA HGX H100 baseboard delivers up to 900 GB/s bidirectional NVLink bandwidth per GPU across all eight accelerators.
What InfiniBand connectivity is recommended for multi-node clustering?
The system features eight dedicated PCIe 5.0 x16 slots for NVIDIA ConnectX-7 400Gb/s NDR InfiniBand adapters (one per GPU).
Buying or selling SYS-821GE-TNHR?
New, refurbished or used. Tell us the quantity and condition and we connect you with a vetted reseller in your region, usually within one working day.
Sources
- Supermicro SYS-821GE-TNHR Specification, checked 2026-10-28