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 four RJ45 ports and silver heatsink

SMUGDESK

SMUGDESK Quad Port Gigabit PCIe x1 NIC Realtek RTL8111H Chip 10/100/1000Mbps 4×RJ45

SKU CH-EF16-39BDA

Adds four gigabit RJ45 ports through one PCIe 1.1 x1 slot using a Realtek RTL8111H controller

  • Four independent gigabit ports from a single PCIe x1 slot
  • Realtek RTL8111H controller auto-negotiates 10/100/1000Mbps over Cat5e/Cat6 up to 100m
  • Passive aluminum heatsink keeps four ports stable under continuous load
  • Wake-on-LAN plus hardware checksum offload and 9KB Jumbo Frames cut CPU overhead
  • Full-height and low-profile brackets included for tower or slim desktop fits

Four-Port Gigabit NIC for Desktop and NAS

This PCIe x1 network card adds four independent RJ45 gigabit Ethernet ports to a desktop PC or NAS using a single expansion slot. It is suited for builders creating soft routers, configuring link aggregation or isolating multiple networks on one system. The Realtek RTL8111H controller handles 10/100/1000Mbps auto-negotiation on each port.

Brackets and offload features change deployment

Both full-height and low-profile half-height brackets are included so the card fits standard towers and slim small-form-factor desktops. Hardware TCP/UDP checksum offload, IEEE802.3x flow control, IEEE802.1Q VLAN tagging and 9KB Jumbo Frame support reduce CPU load during sustained traffic. Wake-on-LAN enables remote system wakeup.

PCIe 1.1 x1 host interface determines slot

The card uses a PCIe 1.1 x1 electrical interface that is mechanically compatible with x1, x4, x8 and x16 slots, preserving higher-speed lanes for other devices. It will not suit systems that lack any PCIe slot or require a different bus architecture such as USB or M.2 for network expansion.

Highlights

  • Four independent gigabit ports from a single PCIe x1 slot
  • Realtek RTL8111H controller auto-negotiates 10/100/1000Mbps over Cat5e/Cat6 up to 100m
  • Passive aluminum heatsink keeps four ports stable under continuous load
  • Wake-on-LAN plus hardware checksum offload and 9KB Jumbo Frames cut CPU overhead
  • Full-height and low-profile brackets included for tower or slim desktop fits

Specifications

No published specifications for this item yet.

Questions about this item

Does the RTL8111H controller or the passive heatsink need any maintenance or replacement over time?

The controller is a solid-state chip with no moving parts and the aluminium heatsink is passive, so neither component requires scheduled maintenance or replacement under normal desktop use.

What limits total throughput first when all four ports run at full speed continuously?

The single PCIe 1.1 x1 host link caps aggregate bandwidth, so the bus saturates before the individual 1000 Mbps ports reach their own limits.

How much heat and noise does the card produce when it runs all day in a NAS or soft-router build?

The passive aluminium heatsink dissipates heat silently with no fan, so the card adds negligible noise and only modest warmth inside the chassis during continuous operation.

Also in this aisle

People compared these

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