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Rectangular aluminium USB 3.0 adapter with single SFP cage

LR-LINK

LR-LINK LREC3210PF-SFP USB 3.0 1000Mbps SFP network card

SKU CH-6YQ6-34H52

Adds a 1000 Mbps SFP fibre port to any USB 3.0, 2.0 or 1.1 host with Realtek RTL8153 and VLAN tagging

  • Rated speed1,000 Mbit/s
  • Interface typeUSB
  • Supported standardsIEEE 802.3az
  • Connection types1 x SFP
  • Gigabit fibre connectivity via a single SFP port
  • USB 3.0 interface with backward compatibility to USB 2.0 and 1.1
  • Realtek RTL8153 controller supports IEEE 802.3az energy-efficient Ethernet
  • Aluminium enclosure aids thermal performance for sustained throughput
  • Broad OS support across Windows, Linux, FreeBSD and VMware platforms

USB 3.0 Fiber Network Adapter

The LR-LINK LREC3210PF-SFP adds a 1000Mbps SFP fiber port to any system with a USB 3.0, 2.0 or 1.1 socket. It uses a Realtek RTL8153 controller and supports IEEE 802.3az for energy-efficient Ethernet. The aluminum shell aids heat dissipation during operation. It suits users who need fiber connectivity without an internal PCIe slot.

Sustained Load Behavior

The adapter maintains gigabit throughput over extended transfers using the USB 3.0 interface. It supports Jumbo Frames and IEEE 802.1Q VLAN tagging for managed network traffic. PXE, DPDK and iSCSI boot or storage protocols function across long sessions. Driver support spans Windows, Linux, FreeBSD and VMware ESXi kernels.

Thermals Noise and Power

The passively cooled aluminum enclosure operates silently without a fan. Power is drawn directly from the USB bus, eliminating the need for an external supply. The IEEE 802.3az standard reduces energy use during low-link utilisation. The compact form factor fits in tight workspaces where active cooling is impractical.

How it compares

Measured against everything we stock in Ethernet Cards & NICs, at today’s prices. Recalculated every night.

Price $78.99
Cheaper than about 54% of the 1,505 comparable items (median $90.99).

Specifications

Product
Brand nameLR-LINK
Model nameLREC3210PF-SFP
Performance
Rated speed1,000 Mbit/s
Connectivity
Supported standardsIEEE 802.3az
Ports & slots
Interface typeUSB
Connection types1 x SFP

Questions about this item

How much heat or noise does the LR-LINK LREC3210PF-SFP produce when running continuously?

The adapter has no fan and uses an aluminium shell for passive cooling, so it runs silently; power comes from the USB 3.0 port.

What must I already own to use the SFP port on this adapter?

You need a compatible SFP transceiver module and matching fibre patch cable; the card only provides the SFP cage.

Will the Realtek RTL8153 controller work with my older Linux 2.6.32 kernel or Windows XP machine?

Yes, the driver supports Linux kernel 2.6.32 and later, plus Windows XP through Windows 10 and Server 2008 R2 through 2019 R2.

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