NVIDIA Mellanox MNPA19-XTR ConnectX-2 EN 10GbE Single-Port SFP+ PCIe 2.0 x8 NIC — Lot of 8: This is a bundle of eight (8) ConnectX-2 EN single-port 10GbE SFP+ network adapters with a PCIe 2.0 x8 host interface. Each card is a network interface card, not a switch or a transceiver. This is a refurbished lot.
Engineering Context
The ConnectX-2 EN is the second-generation Mellanox 10 Gigabit Ethernet ASIC. It supports stateless TCP/UDP/IP offloads, large send offload (LSO), large receive offload (LRO), and basic RoCE v1. The PCIe 2.0 x8 host link operates at 5.0 GT/s per lane, providing approximately 32 Gbps of usable bandwidth — sufficient to drive a single 10GbE port at line rate. The card uses a single SFP+ cage. Typical power draw per card is in the 5W range. The MNPA19-XTR was widely deployed in enterprise and homelab environments and has mature driver support across VMware, Linux, and Windows.
Deployment & Use Cases
Bulk refresh of legacy 1GbE servers in test, dev, or lab environments. Storage front-end NICs for FreeNAS/TrueNAS, Proxmox, and Unraid clusters. Backup and replication NICs in secondary data centers. Educational deployments and 10GbE training labs where eight matched cards are useful for cluster topologies.
Technical Specifications
- OEM: NVIDIA Mellanox
- Part Number: MNPA19-XTR
- ASIC: ConnectX-2 EN
- Ports per Card: 1 x SFP+
- Data Rate: 10GbE
- Host Interface: PCIe 2.0 x8 (5.0 GT/s)
- Protocols: Ethernet, RoCE v1
- Offloads: Stateless TCP/UDP/IP, LSO, LRO
- Form Factor: Low-profile PCIe with full-height bracket option
- Quantity in Lot: 8 cards
- Condition: Refurbished — Tested by T.E.S IT-SOLUTIONS
Compatibility & Hard Constraints
Inbox drivers available for Linux (kernel mlx4_en) and modern Windows Server. VMware ESXi support is mature for ESXi 6.x and earlier; verify driver availability on newer ESXi releases before deployment. Requires SFP+ DAC, AOC, or transceivers — modules are not included. Not a Pro variant: this card does not support VXLAN/NVGRE hardware offload. Single-port only — for dual-port use, see MCX312-series. Not an InfiniBand or VPI card.
Why Choose T.E.S IT-SOLUTIONS
T.E.S IT-SOLUTIONS link-tests every card in the lot, verifies firmware revision, and inspects connector cages before shipment. Visit tes-itsolutions.com/quote for bulk lab and homelab deployment consultation. Global shipping with 1-3 day handling.