PCIe x1 to 4 Port Gigabit Ethernet Card

PCIe x1 to 4 Port Gigabit Ethernet Card


  • Based on RTL8111H Chip, the upstream bandwidth is PCIe 2.1 X1=5Gbps, so four ports can operate simultaneously at 1000Mbps full speed. 
  • Standards: IEEE 802.3, 802.3u, 802.3ab, 802.3x, 802.1q, 802.1p.
  • Data Transfer Rate: Gigabit 10/100/1000Mbps (4-Ports).
  • BUS: PCI Express (PCIe x1), LEDs: ACT/Link.
  • Standard / Low Profile Bracket Included.
  • Supported OS: Windows 2000 / XP / Vista / 7 / 8 / 8.1 / 10 / 11 (32/64-bit); Windows Server 2003 / 2008 / 2012 / 2016 / 2019; Linux.

Product Detail

Product Tags


Technical Specifications
Warranty Information
Part number                                                         STC-PN0021

Warranty                                                              3-years

Connector Plating                                                Gold-plated
Physical Characteristics
Port                                                                      PCIe x1

Color                                                                    Black

Interface                                                               4 Port RJ-45

Packaging Contents
1 x 4-Port PCIe x1 Gigabit Ethernet Network Adapter

1 x User Manual

1 x Low-profile bracket 

1 x Driver CD

Single gross weight: 0.62 kg    

Driver Download: https://www.realtek.com/zh-tw/component/zoo/category/network-interface-controllers-10-100-1000m-gigabit-ethernet-pci-express-software

Products Descriptions

PCIe x1 to 4 Port Gigabit Ethernet Card, 4 Port Gigabit PCIe Network Adapter, Realtek RT8111H Controller 1000/100Mbps Ethernet LAN NIC Card for Windows/Linux/Mac.



PCIe x1 to 4 Port Gigabit Ethernet Card, PCI-E 4-Port Quad 10/100/1000Mbps Gigabit Ethernet PCI Express (PCIe x1) Server Network Card/Network Adapter, Realtek RTL8111H Chipset, Windows 11 & Linux Supported.

This PCI-Express RTL8111 Four Gigabit Ethernet controller card is a high performance 10/100/1000 BASE-T Ethernet LAN controller, supports the PCI Express 1.1 bus interface for host communications with power management, and is compliant with the IEEE 802.3u specification for 10/100Mbps Ethernet and the IEEE 802.3ab specification for 1000Mbps Ethernet. It also supports an auxiliary power auto-detect function, and will auto-configure related bits of the PCI power management registers in PCI configuration space, and is perfectly to convert the PCI-Express interface into Four Gigabit Ethernet ports.


Integrated 10/100/1000M transceiver

Supports Giga Lite (500M) mode

Auto-Negotiation with Next Page capability

Supports PCI Express 1.1

Supports pair swap/polarity/skew correction

Crossover Detection & Auto-Correction

Supports 1-Lane 2.5Gbps PCI Express Bus

Supports hardware ECC (Error Correction Code) function

Supports hardware CRC (Cyclic Redundancy Check) function

Transmit/Receive on-chip buffer support

Supports PCI MSI (Message Signaled Interrupt) and MSI-X

Fully compliant with IEEE802.3, 802.3u and 802.3ab

Supports IEEE 802.1P layer 2 Priority Encoding

Supports 802.1Q VLAN tagging

Supports IEEE 802.3az-2010(EEE)

Supports Full Duplex flow control (IEEE.802.3x)

Supports jumbo frame to 9K bytes

Supports quad core Receive-Side Scaling(RSS)

Supports Protocol Offload(ARP&NS)

Supports Microsoft WPI (Wake Packet Indication)

Supports ECMA-393 ProxZzzy Standard for sleeping hosts


System Requirements 

Windows 20000, ME, 98SE, Windows Server 2003/XP/Visit/ 2008/7 /8 /10 32-/64-bit,Linux, MAC OS 10.4 or above and DOS.

Package Contents

1 x 4 port PCI-E x1 Network Adapter Card

1 x User Manual

1 x Low-profile bracket 

1 x Driver CD

Note: Contents may vary depending on country and market.


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