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Configure Talk to an engineer

AI workstations, GPU servers and HPC clusters, specified for your work and verified to fit, power and cool before we quote. Supported across Pakistan.

Sales: info@supercomputers.pk
Phone: +92 301 8100343
Sites: Islamabad

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How we work
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Talk to an engineer

© 2026 Supercomputers (Pvt) Ltd. Every configuration is quoted individually, landed in Pakistan with duty and taxes included.

Product names and trademarks belong to their respective owners. Specifications are vendor-published figures; dense tensor throughput is quoted rather than sparse. Refurbished hardware carries our own warranty, not the manufacturer's, unless the listing states otherwise.

Catalogue/Network Adapters/NVIDIA

datacenter

NVIDIA

ConnectX-4 Lx 25GbE

MPN CX4-LX-25 · SKU N-1YXNS4R · Released 2016

Port: 2x 25G
Fabric: Ethernet
Bus: Gen3 x8

Photographs of this unit

1 / 1

NVIDIA ConnectX-4 Lx 25GbE

Photo: nvidia.com

Why this part

Dual 25G for less than a decent SATA SSD
RoCE capable
The cheapest real upgrade over 10G

Condition · Refurbished Grade A

Compare all six grades →

Bench tested under load for 48 hours. Cosmetically near-new. Covered in-house.

Covered by a 12 month warranty from us directly.

Specification

Network

Fabric: ethernet
Ports: 2 x 25 Gb/s
Connector: SFP28

Host interface

PCIe: Gen 3.0 x8
Bracket: Low profile available
Power: 11 W

Offloads

RDMA: Yes
SR-IOV: Yes
GPUDirect: No

Same part, other grades and partners

3 other SKUs built on the same processor. The price difference comes from condition grade, board partner and cooler design, not from the chip itself.

NVIDIA ConnectX-4 Lx 25GbERefurbished Grade B NVIDIA ConnectX-4 Lx 25GbEOEM Recertified NVIDIA ConnectX-4 Lx 25GbETested Pull

Ideal for

Because we build this part into machines specified for this work.

AI & Machine Learning
Computational Fluid Dynamics
Database & Storage
Web & Application

Built into

Fusion Rack AI 200Two-accelerator AI serving node Fusion Rack Data 200Entry database node Fusion Rack Web 300Application and container node Fusion Rack Fury 200Entry CFD compute node

Quoted per order

Send the request and we reply within one working day with availability, lead time and a landed quotation, duty and taxes included.

Quote this part Add to a configuration

Included with every order

12 month warranty, handled here rather than shipped abroad
Tested and, where used, re-pasted before dispatch
Delivered across Pakistan from Islamabad, by courier
One invoice and one point of contact for the whole configuration

Also considered

ConnectX-7 400GbE QSFP112

Refurbished Grade A

12 month warranty · quoted per order

ConnectX-7 400GbE QSFP112

12 month warranty · quoted per order

E810-CQDA2 100GbE

3 month warranty · quoted per order

ConnectX-6 Dx 100GbE

3 month warranty · quoted per order

E810-CQDA2 100GbE

Refurbished Grade A

12 month warranty · quoted per order