Use :
For DESKTOP PC on PCI port. Compatible with all 10Mbps, 100Mbps or 1000Mbps RJ45 networks.
WINDOWS and LINUX compatible -  
Features:
  - Supports 32-bit 33/66MHz PCI buses,
- Compatible with PCI Bus Revision Version 2.1/2.2/2.3,
- Compatible with IEEE802.3 10Base-T, IEEE802.3u 100Base-TX and IEEE802.3ab 1000Base-T standards,
- Nway Auto-Negotiation function 10/100/1000Mbps,
- Supports 10/100Mbps full and half duplex, 1000Mbps full duplex,
- Supports Full en control (IEEE 802.3x),
- Supports "Jumbo" frames,
- RJ45 Auto-MDiX port allowing you to use a straight or crossover cable,
- STP shielded connector compatible with STP or UTP cables (unshielded),
- ACPI and PCI Power Management function,
- Integrates 2 large independent FIFO channels to receive and transmit simultaneously,
- BootROM base for pre-programmed boot Eprom,
- LED indicator indicating network activity,
- RealTek RTL8169SC chipset,
- Supported Systems: Windows 98, ME, 2000, NT, XP, 2003, Vista, Seven, 8, 10 - Linux 2.4...
For DESKTOP PC on PCI port. Compatible with all 10Mbps, 100Mbps or 1000Mbps RJ45 networks. - Compatible with PCI Bus Revision Version 2.1/2.2/2.3, - Compatible with IEEE802.3 10Base-T, IEEE802.3u 100Base-TX and IEEE802.3ab 1000Base-T standards, - Nway Auto-Negotiation function 10/100/1000Mbps, - Supports 10/100Mbps full and half duplex, 1000Mbps full duplex, - Supports Full en control (IEEE 802.3x), - RJ45 Auto-MDiX port allowing you to use a straight or crossover cable, - STP shielded connector compatible with STP or UTP cables (unshielded), - Integrates 2 large independent FIFO channels to receive and transmit simultaneously, - BootROM base for pre-programmed boot Eprom, - LED indicator indicating network activity, - Supported Systems: Windows 98, ME, 2000, NT, XP, 2003, Vista, Seven, 8, Recommended products Provided by MiniPCIe Card - GIGABIT LAN ETHERNET - REALTEK RTL8111 CHIPSET Mini PCI Express View product PCI Card 10/100/1000 - 2 Ports Gigabit Ethernet CHIPSET 82546EB/GB View product PCIe 4 Ports LAN RJ45 Gigabit Ethernet 10 100 1000 Mbps Chipset REALTEK RTL8111H View product Pcie Card 10 100 1000 1G Gigabit Lan Ethernet - Realtek Rtl8111f View product Pcie Card 8 Ports Rj45 Gigabit Lan Ethernet 10 100 1000 1G Realtek Rtl8111h View product Pcie Card 10 100 1000 Quad Gigabit Ethernet Chipset I350AM4 Lbp Lan Bypass View product MiniPCIe Card - GIGABIT LAN ETHERNET - INTEL 82574 CHIPSET - Mini PCI Express View product MiniPCIe Card - 2.5 GIGABIT LAN ETHERNET - REALTEK RTL8125 - Mini PCI Express View product