NVIDIA 900-9X5AD-0016-ST1 Mellanox ConnectX-5 EN 1× 100GbE QSFP28 PCIe Network Adapter | Used

Name: NVIDIA 900-9X5AD-0016-ST1 Mellanox ConnectX-5 EN 1× 100GbE QSFP28 PCIe Network Adapter | Used
Brand: NVIDIA
SKU: 900-9X5AD-0016-ST1
Price: 3862.00 HKD
Availability: InStock

Vendor: NVIDIA

SKU: 900-9X5AD-0016-ST1

Product type: ETHERNET-ADAPTER

HKD 3,862.00

Quantity

NVIDIA 900-9X5AD-0016-ST1 Mellanox ConnectX-5 EN 1× 100GbE QSFP28 PCIe Network Adapter | Used

HKD 3,862.00

Description
Custom Tab

100GbE Network Adapter · Used

NVIDIA Mellanox ConnectX-5 EN — 100GbE QSFP28

900-9X5AD-0016-ST1 — the NIC that carried the cloud generation, at pulled-part pricing.

Before 400G was mainstream, ConnectX-5 was the adapter inside a huge share of hyperscaler and HPC clusters — and for 100GbE compute nodes, storage and backbones it’s still exactly the right card. RDMA offload, RoCEv2, hardware timestamps: the features that make fast networks behave fast under load.

100GbE

Single QSFP28 port

PCIe 3.0 x16

Full-width host slot

RDMA / RoCEv2

Hardware offloads

Pulled & Tested

From working servers

01

Why RDMA Matters

✓ Zero-copy networking — kernel bypass moves data NIC-to-memory without CPU cycles; this is how distributed storage stays fast
✓ RoCEv2 over standard Ethernet — GPUDirect Storage, NVMe-oF and SMB Direct all ride on it
✓ Hardware offloads — checksum, segmentation and encryption offload free your CPUs for real work

02

Where It Shines

✓ Compute clusters — MPI/HPC interconnects and parallel filesystems at 100G line rate
✓ Storage fabrics — NVMe-oF targets and HCI replication links
✓ Virtualization — SR-IOV passthrough gives VMs near-native network performance

The details that matter

Model	NVIDIA Mellanox ConnectX-5 EN (900-9X5AD-0016-ST1)
Port	1× 100GbE QSFP28
Interface	PCIe 3.0 x16
Offloads	RDMA / RoCEv2, SR-IOV, NVMe-oF, GPUDirect-ready
Condition	Used — pulled from working servers, tested

Building out nodes?

We stock matching QSFP28 optics/DACs and multi-NIC batches — ask for bundle pricing on cluster builds.

Verify PCIe slot width and OS driver support for your platform. Product images are representative.

The Custom Tab allows you to display personalized content on your product page with full flexibility.

You can easily manage what appears inside this tab by choosing one of the following options:

Manual Input: Enter content directly in the theme settings.
Metafield Source: Connect the tab to a metafield to display dynamic, product-specific information.
Page Content: Pull existing content from a Shopify page to reuse or centralize updates.

This feature is ideal for showing size guides, care instructions, brand stories, shipping details, or any custom information you want your customers to see — all without touching any code.