Skip to product information
1 of 1

Mellanox ConnectX-6 Lx 25GbE Dual Port SFP28 PCI Express 4.0 x8 Network Adapter - MCX631102AN-ADAT

Mellanox ConnectX-6 Lx 25GbE Dual Port SFP28 PCI Express 4.0 x8 Network Adapter - MCX631102AN-ADAT

Part Number: MCX631102AN-ADAT
Manufacturer: Mellanox

Condition: Refurbished

Weight: 5.0 lbs

AvailabilityIn stock

Regular price $336.70
Regular price Sale price $336.70
Sold out
Shipping calculated at checkout.
Delivery Car

Fast Delivery

Return Icon

30 Days Returns Policy

Features Icon

Free Shipping Upto 10lbs

Warranty Icon

100% secure payment

We accept purchase orders from fortune 1000 Companies, government agencies, defence, Schools, and hospitals. For more details, contact us at (800) 504-1875 or simply submit Request for Quote form. Our Sales Team will prompt respond with a best solution tailored to your needs.

  • American Express
  • Diners Club
  • Discover
  • Mastercard
  • PayPal
  • Shop Pay
  • Visa

Request For Quote

This site is protected by hCaptcha and the hCaptcha Privacy Policy and Terms of Service apply.

NVIDIA Mellanox ConnectX-6 Lx Dual Port 25GbE SFP28 Network Adapter — MCX631102AN-ADAT

The NVIDIA Mellanox ConnectX-6 Lx (MCX631102AN-ADAT) is a dual-port 25GbE SFP28 SmartNIC built on the ConnectX-6 Lx ASIC, offering a powerful combination of high throughput, ultra-low latency, and advanced hardware offloads. With PCIe 4.0 x8 host connectivity and support for RoCEv2, SR-IOV, and NVIDIA ASAP² (Accelerated Switching and Packet Processing), this adapter is ideal for AI/ML workloads, NVMe-oF storage, cloud computing, and high-performance data center networking.

Key Specifications

  • Part Number / MPN: MCX631102AN-ADAT
  • Controller: NVIDIA Mellanox ConnectX-6 Lx
  • Ports: 2x SFP28 (25GbE / 10GbE / 1GbE)
  • Host Interface: PCIe 4.0 x8 (backward compatible with PCIe 3.0)
  • Form Factor: Low Profile (LP) with full-height bracket included
  • Max Aggregate Bandwidth: 50Gbps

Performance

  • Per-Port Speed: 25GbE, 10GbE, or 1GbE
  • Aggregate Bandwidth: Up to 50Gbps
  • PCIe Bandwidth: PCIe 4.0 x8 (up to 16 GT/s per lane)
  • Max Message Rate: Up to 215 Mpps
  • Latency: Sub-microsecond with RDMA

Offload & Advanced Features

  • RDMA over Converged Ethernet v2 (RoCEv2)
  • iWARP RDMA support
  • SR-IOV (up to 256 VFs)
  • NVIDIA ASAP² — hardware-accelerated Open vSwitch (OVS) offload
  • NVMe-oF initiator and target offload
  • VXLAN, NVGRE, Geneve, MPLS tunnel offload
  • Stateless offloads: checksum, LSO, LRO, RSS
  • IEEE 1588 Precision Time Protocol (PTP) hardware timestamping
  • GPUDirect RDMA support (for AI/ML GPU-to-NIC direct transfers)

Virtualization

  • SR-IOV: Up to 256 Virtual Functions
  • VirtIO acceleration
  • Compatible with VMware ESXi, KVM, Hyper-V, and container runtimes
  • VXLAN/Geneve encapsulation offload for overlay networks

Physical & Electrical

  • Form Factor: Low Profile (LP bracket included; FH bracket included)
  • PCIe Slot: x8 (PCIe 4.0)
  • Power Consumption: ~10W typical
  • Operating Temperature: 0°C to 55°C
  • Storage Temperature: -40°C to 70°C
  • Humidity: 10% to 90% non-condensing

Standards & Compliance

  • IEEE 802.3by (25GBASE-CR/SR/KR)
  • IEEE 802.3ae (10GBASE-SR/LR)
  • IEEE 802.3ab (1000BASE-T via SFP)
  • IEEE 802.1Q VLAN, 802.3ad LACP
  • RoHS compliant

OS & Driver Support

  • Linux (MLNX_OFED / inbox driver)
  • Windows Server 2016, 2019, 2022
  • VMware ESXi 6.7, 7.0, 8.0
  • FreeBSD

Compatibility

  • Compatible with Intel Xeon Scalable and AMD EPYC server platforms
  • Supported in Dell PowerEdge, HPE ProLiant, Lenovo ThinkSystem, and Supermicro servers
  • Works with NVIDIA Spectrum switches for end-to-end NVIDIA networking fabric

Condition: Refurbished — fully tested and inspected. Backed by CPU Republic's quality assurance process.

Frequently Asked Questions

Why do I see an incorrect image for this item?

Product images are meant for illustrative purposes alone, and you may not always see the original image.

What do you mean by term Refurbished?

Refurbished means a used computer part or device that has been cleaned, checked, and repaired to make sure it works properly again. Unlike regular second-hand items, refurbished products go through testing and fixing so they can perform like new.

How many days does it take to ship goods to customers?

All orders are processed within 1-2 business days. Orders placed on weekends or public holidays will be processed on the next business day. For more info visit shipping policy.

What is your return policy?

Our Return Policy comprises a 30-day warranty for Refurbished products. There will be a restocking fee applied when you return non-defective returns. For further details, kindly take a look at our Return Policy page.

Do you deliver my ordered items in their original retail box?

For Brand New items, you will receive them in their original retail box. For Refurbished items, you will receive them in a Brown Box or Bulk Packaging.

Do your printers come with ink cartridges?

Refurbished printers do not come with ink cartridges or toners.