We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Green circuit board with silver dual QSFP28 ports and full-height bracket

LR-LINK

LR-LINK LRES1046PF-2QSFP28 100GbE network card

SKU CH-Z94Q-9MS8G

Dual-port 100GbE PCIe 4.0 x16 adapter with Mellanox ConnectX-5 Ex controller, two QSFP28 ports and RDMA, iSCSI and PXE support

  • Dual 100 GbE ports for high-throughput data-center workloads
  • PCIe 4.0 x16 interface delivers 16 GT/s bandwidth per lane
  • Mellanox ConnectX-5 Ex controller enables RDMA and NVMe-oF acceleration
  • IEEE 1588 PTP hardware time-stamping for precision synchronisation
  • Broad OS support including Windows 10/11, Server 2016/2019/2022 and Linux distros

Dual-port 100GbE adapter

The LR-LINK LRES1046PF-2QSFP28 is a PCIe 4.0 x16 network card built on the Mellanox ConnectX-5 Ex controller. It targets data-centre operators and high-performance storage clusters that need twin 100 Gb/s Ethernet links. The board fits standard and low-profile servers thanks to the included full-height and low-profile brackets.

Capacity and headroom

Each QSFP28 port delivers 100 Gb/s bandwidth for inter-node traffic, large-scale storage fabrics and cloud compute workloads. RDMA support moves data directly between memory regions, cutting CPU overhead and latency. The dual-port layout provides link redundancy or aggregated throughput, but the card tops out at two ports; environments needing denser connectivity will require additional adapters.

Build and daily implications

A heatsink handles thermal load in sustained server-duty cycles without active cooling noise. PCIe 4.0 x16 ensures the bus does not bottleneck the twin 100 Gb/s lanes. QSFP28 cages accept direct-attach copper or optical transceivers for rack or cross-rack runs. Driver media and downloads cover Windows 10, 11, Server 2016, 2019, 2022, Deepin 15.11, 20, 20.6, 20.9 and OpenKylin 0.7.5.

Highlights

  • Dual 100 GbE ports for high-throughput data-center workloads
  • PCIe 4.0 x16 interface delivers 16 GT/s bandwidth per lane
  • Mellanox ConnectX-5 Ex controller enables RDMA and NVMe-oF acceleration
  • IEEE 1588 PTP hardware time-stamping for precision synchronisation
  • Broad OS support including Windows 10/11, Server 2016/2019/2022 and Linux distros

Specifications

No published specifications for this item yet.

Questions about this item

Will the PCIe 4.0 x16 interface run at full speed if I install this card in an older PCIe 3.0 x16 slot?

The card is designed for PCIe 4.0 x16 and will negotiate down to PCIe 3.0 x16 if that is the slot capability, reducing available bandwidth.

How can I confirm both 100GbE QSFP28 ports are linked and passing traffic after installation?

Check the OS network manager or ethtool output for each port showing a 100 Gb/s link speed and verify RX/TX counters incrementing on both interfaces.

Does the box include the QSFP28 transceivers and cables needed to connect the two ports, or must I source them separately?

The package supplies the adapter, low-profile and full-height brackets, and a driver CD; QSFP28 modules and cables are not included and must be purchased separately.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.