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Mellanox MCX653106A-ECAT ConnectX-6 NIC 100GbE 2-Port QSFP56 Used -
Mellanox MCX653105A-ECAT NIC 100GbE 1-Port HDR100 QSFP56 Used -
Mellanox MCX653106A-HDAT ConnectX-6 NIC 200GbE 2-Port QSFP56 Used -
Mellanox MCX653105A-ECAT NIC 100GbE 1-Port HDR100 QSFP56 Used -
Mellanox MCX653105A-HDAT NIC 200GbE 1-Port HDR QSFP56 InfiniBand Used -
Mellanox MCX653105A-HDAT NIC 200GbE 1-Port HDR QSFP56 InfiniBand Used -
Mellanox MCX653105A-HDAT ConnectX-6 NIC 200GbE 1-Port HDR QSFP56 Used -
Mellanox MCX516A-CDAT ConnectX-5 NIC 100GbE 2-Port QSFP28 PCIe4.0 Used -
Mellanox MCX516A-CDAT NIC 100GbE 2-Port QSFP28 PCIe4.0 Used -
Mellanox MCX516A-CCAT NIC 100GbE 2-Port QSFP28 PCIe3.0 Used -
Mellanox MCX4121A-ACAT ConnectX-4 NIC 25GbE 2-Port SFP28 PCIe3.0 Used -
Mellanox MCX512A-ACUT NIC 25GbE 2-Port SFP28 Used -
Mellanox MCX4121A-ACAT ConnectX-4 NIC 25GbE 2-Port SFP28 PCIe3.0 Used -
Mellanox MCX516A-CCAT ConnectX-5 NIC 100GbE 2-Port QSFP28 PCIe3.0 Used -
Mellanox MCX4121A-ACAT ConnectX-4 NIC 25GbE 2-Port SFP28 PCIe3.0 Used -
Mellanox MCX512A-ACAT NIC 25GbE 2-Port SFP28 Used -
Mellanox MCX512A-ACAT NIC 25GbE 2-Port SFP28 Used -
Mellanox MCX516A-CCAT NIC 100GbE 2-Port QSFP28 PCIe3.0 Used -
Mellanox MCX4121A-XCAT NIC 10GbE 2-Port SFP28 Used -
Mellanox MCX512A-ACAT NIC 25GbE 2-Port SFP28 Used -
Mellanox MCX512A-ACUT ConnectX-5 NIC 25GbE 2-Port SFP28 Used -
Mellanox MCX516A-CDAT ConnectX-5 Ex NIC 100GbE 2-Port QSFP28 Used -
Mellanox MCX4621A-ACAB ConnectX-4 NIC 100GbE 1-Port QSFP28 Used -
Mellanox MCX4131A-GCAT ConnectX-4 NIC 40GbE 1-Port QSFP Used
Used Enterprise Network Adapters (NICs)
A server network adapter is a PCIe card that adds high-speed Ethernet or InfiniBand ports to a server, and in the Mellanox ConnectX family it also offloads RDMA (RoCE v2), NVMe-oF and encryption in hardware — which is why it is the standard card in AI, storage and HPC clusters. Zhongxin Data supplies used ConnectX-4, ConnectX-5 and ConnectX-6 adapters from 10GbE to 200GbE, bench-tested before dispatch.
- Speeds — 10GbE, 25GbE, 40GbE, 100GbE and 200GbE
- Connectors — SFP28, QSFP28 and QSFP56, single and dual port
- Offload — RoCE v2, NVMe-oF target and initiator, IPsec and TLS inline
- Bracket height — low-profile and full-height confirmed per unit
Two cards with the same model number can differ by firmware mode and bracket, so send the full part number and we confirm exactly what ships. Models listed on this page are in stock; part numbers are confirmed on request. All used hardware carries a 90-day warranty from delivery.
Request a quote, or message us on WhatsApp at +86 13068616914 with the part number, quantity and destination.