Supermicro GPU SuperServer SYS-420GP-TNBR
The Supermicro SYS-420GP-TNBR is an enterprise 4U GPU server powered by dual 3rd Gen Intel Xeon Scalable processors. Accommodating up to ten double-width PCIe 4.0 accelerator cards, 32 DDR4 DIMMs, and 24 hot-swap 2.5-inch drive bays (including eight NVMe), it provides high GPU density for deep learning inference, rendering, and molecular dynamics.
Specifications
| Brand | Supermicro |
|---|---|
| Family | GPU SuperServer |
| Form factor | 4U rack |
| Released | Aug 2021 |
| Form factor | 4U rack |
| Sockets | 2 |
| Processor family | Intel Xeon Scalable (3rd Gen) |
| Memory slots | 32 |
| Max memory | 8TB DDR4-3200 |
| Gpu support | Up to 10x double-width PCIe 4.0 GPUs |
| Drive bays | 24x 2.5-inch hot-swap SAS/SATA/NVMe |
| Power supplies | 4x 2000W Redundant Titanium |
Generations
- Previous generation: Supermicro GPU SuperServer SYS-4029GP-TRT
- Next generation: Supermicro GPU SuperServer SYS-421GE-TNRT
Works together
How the Supermicro GPU SuperServer SYS-420GP-TNBR connects to servers, storage and the network: 4 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
Brocade G-Series G730 2U
Dell Connectrix DS-7720B 1U rack
Dell Connectrix MP-7850B 1U switch
HPE StoreFabric SN6700B 1U rack
Storage
Dell PowerStore 500T 2U rack
HPE Alletra 6000 4U rack
HPE Alletra 9000 4U rack mission-critical array
Dell PowerMax 2500 4U multi-node rack
Dell PowerMax 8500 system bay multi-enclosure
Dell PowerStore 1000T 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
Cisco Nexus 93180YC-FX3 1U
Dell PowerSwitch N3248TE-ON 1U switch
Dell PowerSwitch Z9432F-ON 1U switch
HPE Aruba CX 10000 1U distributed services switch
Storage
- Dell PowerStore 500T 2U rack
- HPE Alletra 6000 4U rack
- HPE Alletra 9000 4U rack mission-critical array
- Dell PowerMax 2500 4U multi-node rack
- Dell PowerMax 8500 system bay multi-enclosure
- Dell PowerStore 1000T 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
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
Dell PowerVault ME5012 2U rack
Dell PowerVault ME5024 2U rack
Dell PowerVault ME5084 5U rack
HPE MSA 2060 2U rack
Lenovo ThinkSystem DE6400H 2U rack
Lenovo ThinkSystem DE6600H 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
- Cisco Nexus 93180YC-FX3 1U
- Dell PowerSwitch N3248TE-ON 1U switch
- Dell PowerSwitch Z9432F-ON 1U switch
- HPE Aruba CX 10000 1U distributed services switch
Storage
Dell PowerScale A300 4U
Dell PowerScale A3000 4U 4-node chassis
Dell PowerScale F900 2U rack
Dell PowerScale H700 4U
Dell PowerScale H7000 4U 4-node chassis- Dell PowerStore 500T 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
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-420GP-TNBR.
- Compatibility Supermicro tested memory, drives and add-on cards (per system page)
- Support Supermicro Support
Equivalent models from other brands
- Dell PowerEdge XE8545 · compare
- Lenovo ThinkSystem SR670 V2 · compare
- HPE ProLiant DL380 Gen10 Plus · compare
FAQ
How many double-width PCIe 4.0 GPUs does the SYS-420GP-TNBR support?
The system supports up to ten double-width PCIe 4.0 x16 accelerator cards such as NVIDIA A100, RTX A6000, or L40.
What power supply configuration is implemented?
The chassis incorporates four 2000W redundant Titanium power supplies configured in 2+2 or 3+1 redundancy modes.
Buying or selling SYS-420GP-TNBR?
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-420GP-TNBR Specification, checked 2026-10-28