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Green full-height PCIe card with one silver QSFP28 cage and gold edge connector

LR-LINK

LR-LINK LRES1019PF-QSFP28 100GbE single-port QSFP28 PCIe 4.0 x16 network card

SKU CH-A8WS-2AWZF

Single-port 100GbE QSFP28 adapter with PCIe 4.0 x16, Intel E810 chip, iWARP and RoCEv2 RDMA, 256 VFs, 768 VSIs, IEEE 1588 PTP timestamping

  • Speed100GbE
  • Connectors1*QSFP28
  • InterfacePCI-Express
  • Temperature0 ℃ to +55 ℃
  • Humidity0 % ~ 90 % (Non-condensing)

Ports 1 x QSFP

  • PCIe 4.0 x16 delivers 100 GbE throughput
  • Intel E810 chip enables iWARP and RoCEv2 RDMA
  • 256 virtual functions and 768 VSIs boost virtualization density
  • IEEE 1588 PTP v1 and v2 provides per-packet time stamping
  • Broad OS support covers Windows Server 2016 R2, 2019 R2, CentOS 7.x+, Ubuntu 16.x+, FreeBSD 11.x/12.x+

Single-port 100GbE QSFP28 adapter

The LR-LINK LRES1019PF-QSFP28 is a single-port 100GbE network adapter built on the Intel E810 chip. It connects through a PCI Express 4.0 x16 slot and carries one QSFP28 cage for fibre connectivity. The card targets servers that need high-throughput, low-latency Ethernet for virtualization, storage or high-performance computing workloads.

PCIe 4.0 x16 slot with dual-bracket fit

The adapter uses a full PCIe 4.0 x16 electrical interface and is backward compatible with PCIe 3.0 systems. Both low-profile and full-height brackets are supported, allowing installation in standard rack servers or space-constrained blade chassis. A single QSFP28 port accepts compatible 100G transceivers or direct-attach cables for straightforward fibre deployment.

0 to 55 ℃ operating range with RDMA offload

Rated for 0 ℃ to 55 ℃ and up to 90 % non-condensing humidity, the card is designed for typical data-centre environments. Hardware offload for iWARP and RoCEv2 RDMA reduces CPU overhead during heavy data movement. Precision Time Protocol IEEE 1588 v1 and v2 with per-packet time stamping supports synchronised workloads across the cluster.

Highlights

  • PCIe 4.0 x16 delivers 100 GbE throughput
  • Intel E810 chip enables iWARP and RoCEv2 RDMA
  • 256 virtual functions and 768 VSIs boost virtualization density
  • IEEE 1588 PTP v1 and v2 provides per-packet time stamping
  • Broad OS support covers Windows Server 2016 R2, 2019 R2, CentOS 7.x+, Ubuntu 16.x+, FreeBSD 11.x/12.x+

Specifications

BrandLR-LINK
ModelLRES1019PF-QSFP28
Speed100GbE
Connectors1*QSFP28
InterfacePCI-Express
Temperature0 ℃ to +55 ℃
Humidity0 % ~ 90 % (Non-condensing)

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Questions about this item

What practical throughput limit does the PCIe 4.0 x16 interface impose on this 100GbE card?

The PCIe 4.0 x16 link provides up to 16 GT/s per lane, giving ample headroom so the 100 Gbps Ethernet port can run at line rate without bus saturation.

Which bracket heights are supplied for mounting the LRES1019PF-QSFP28 in a server chassis?

The adapter ships with both a low-profile bracket and a full-height bracket, allowing installation in 1U racks or standard tower servers.

What driver step is often missed when installing this Intel E810-based adapter on Linux?

After loading the kernel module, create the needed virtual functions with the SR-IOV sysfs interface; the 256 VFs do not appear until explicitly enabled.

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