MCX75310AAS-NEAT: NVIDIA ConnectX-7 Single-Port 400Gb/s NDR InfiniBand and 400GbE OSFP PCIe 5.0 x16 Adapter
Also listed as: ConnectX-7 400G OSFP, MCX75310AAS-NEAT-SP, MCX75310AAS, MCX75310AAS-HEAT · made by NVIDIA
The NVIDIA ConnectX-7 (model MCX75310AAS-NEAT) is the premier ultra-high-speed network adapter delivering single-port 400Gb/s NDR InfiniBand and 400GbE over a cutting-edge PCIe 5.0 x16 bus. Tailored for large-scale GPU training supercomputers, generative AI clusters, and ultra-high-bandwidth NVMe-oF fabrics, it features hardware NVIDIA SHARP in-network computing and advanced telemetry. Secondary buyers should inspect the delicate OSFP optical cage pins, verify server PCIe 5.0 motherboard qualification, and confirm adequate cooling airflow.
Specifications
| Part number | MCX75310AAS-NEAT |
|---|---|
| Brand | NVIDIA |
| Made by | NVIDIA |
| Type | Network adapters |
| Other numbers | ConnectX-7 400G OSFP, MCX75310AAS-NEAT-SP, MCX75310AAS, MCX75310AAS-HEAT |
| Status | current |
| Interface | PCIe 5.0 x16 |
| Form factor | PCIe Standup Low Profile |
| Ports | 1x 400Gb/s OSFP |
| Speed | 400Gb/s NDR / 400GbE |
| Generation fit | PCIe Gen5 AI compute nodes (DGX H100, HGX H100, SR675 V3) |
About the MCX75310AAS-NEAT
MCX75310AAS-NEAT is NVIDIA's premier ConnectX-7 single-port 400Gb/s NDR InfiniBand and 400GbE OSFP adapter, operating over an ultra-fast PCIe 5.0 x16 interface. Designed for large-scale generative AI clusters, DGX H100 nodes, and extreme-bandwidth NVMe-oF fabrics, it features NVIDIA SHARP in-network computing and advanced hardware telemetry to accelerate AI model training.
Compatibility
Requires an electrical and mechanical PCIe 5.0 x16 slot in high-performance AI and GPU compute servers (such as Dell PowerEdge XE9680, Lenovo SR675 V3, or Supermicro GPU servers). Features a single OSFP optical transceiver cage. Requires high-velocity chassis fan cooling to dissipate heat generated during continuous 400Gbps operation.
How to identify a genuine unit
The low-profile card features a massive black heatsink covering the ConnectX-7 ASIC and an NVIDIA label reading MCX75310AAS-NEAT, 400Gb/s OSFP. In operating systems, the mlx5_core driver initializes an ultra-high-speed 400G network interface for low-latency fabrics.
Buying used
Due to the high cost of 400G networking gear, inspect the internal OSFP optical cage pins with extreme care. Request diagnostic telemetry logs confirming clean link sync and normal operating temperatures. Verify that the card operates with standard NVIDIA factory firmware.
Reference prices (last 14 days, updated 2026-10-27)
New: USD 2,200 (1 sighting, Oct 2026)
Used: USD 1,450 (1 sighting, Oct 2026)
All sightings
| Seller | Condition | Price | Note | Seen |
|---|---|---|---|---|
| serversupply.com | new | USD 2,200 | 2026-10-27 | |
| ebay.com | used | USD 1,450 | 2026-10-27 |
Prices seen on public listings on the dates shown, before tax and shipping. Not an offer.
Fits these models
Equivalent part numbers
- Dell 540-BDSH Dell NVIDIA ConnectX-7 Single Port 400GbE/NDR OSFP Adapter
FAQ
What port connector is utilized on MCX75310AAS-NEAT?
Single OSFP (Octal Small Form-factor Pluggable) optical/copper transceiver cage.
What bandwidth does PCIe 5.0 x16 provide for ConnectX-7?
Up to 512Gb/s bi-directional PCIe bandwidth, perfectly sustaining 400Gb/s wire speed.
Buying or selling MCX75310AAS-NEAT?
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
- NVIDIA ConnectX-7 Adapter Cards User Manual, checked 2026-10-27