Contributed Configurations
February 16, 2026
Contributed DTN Configurations
This page consists of contributed configurations of Data Transfer Nodes. ESnet provides these as reference, and we encourage reaching out the groups that have built and test these directly for questions
SC25 Caltech Demonstrations
The configuration described below consists of a dual-CPU server, that is capable of supporting two ConnectX-7 400G interfaces. Each ConnectX-7 (PCIe 5.0 16 lanes) supports 400G throughput. The base configuration product can also be found here:
https://www.supermicro.com/en/products/system/datasheet/as-2125hs-tnr
| Item | Description | QTY |
| CPU | Genoa 9474F DP/UP 48C/96T 3.6G 256M 360W SP---PSE-GEN9474F-0788 | 2 |
| RAM | 64GB DDR5 RDIMM 6400 ECC REG---MEM-DR564MC-ER64 | 24 |
| [Data] SSD Memory | 9550 MAX 6.4TB NVMe PCIe 5 3DWPD TLC D, 15mm single-port | 6 |
| [System] SSD Memory | Micron 7450 MAX 800GB NVMe PCIe 4.0 M.2 22x80 mm, 3DWPD 3D TLC | 2 |
| [Management] Network Card | AIOM 2-ports NVIDIA 900-9X760-0078-MB0 OCP3.0 200G IB&2pVPI---AOC-CX7600078-MB0 | 1 |
| [Data] Network Cards | Nvidia 900-9X766-003N-SQ0 PCIe 1-port IB and Ethernet 400GbE OSFP Gen5x16 CX7,RoHS---AOC-CX766003N-SQ0 | 2 |
