There are 3 models optional, different model with different interface and appearance, please choose suitable model before purchase: 1 2.5G i225 Network Cardsupport: Win 10/Win 7/Win 8, 8.1 2 2.5G RTL8125B Network CardSupport Win7/8/10/11,Linux 31000M RTL8111E Network Card, Supports Windows XP/Vista/7 32/64-bit, Server 2003 32/64-bit, Linux Windows 10 1 2.5G Intel i225 Network Card Product name: 2.5G network card Applicable network type: fast Ethernet Bus type: PCI-E Transmission rate: 10/100/1000M/2.5Gbps data rate automatic detection. Full duplex/half duplex: full duplex/half duplex adaptive. Network receiving type: RJ45 Applicable model: desktop Main chip: I225 Driver support: Win 10 32/64, Win 7 32/64, Win 8, 8.1 32/64. Support protocols: IEEE 802.3, IEEE 802.3u, IEEE 802.3ab, IEEE 802.3azIEEE 802.3bz 2 2.5G RTL8125B Network Card Feature: 1 Integrated 10M BASE-T and 100/1000M/2.5G BASE-T 802.3 compatible transceiver 2 Supports 2.5G Lite 1G data rate mode 3 Auto-Negotiation with Extended Next Page capability XNP 4 Compatible with NBASE-TTM Alliance PHY Specification 5 Supports PCI Express 2.1 6 Supports pair swap/polarity/skew correction 7 Crossover Detection Auto-Correction 8 Supports 1-Lane 2.5/5Gbps PCI Express Bus 9 Support WiFi reception, AP hotspot transmission 10Supports hardware ECC Error Correction Code function 11Supports hardware CRC Cyclic Redundancy Check function 12Transmit/Receive on-chip buffer support 13Supports PCI MSI Message Signaled Interrupt and MSI-X 14Supports power down/link down power saving/PHY disable mode 15Supports ECMA-393 ProxZzzy Standard for sleeping hosts 16Supports LTR Latency Tolerance Reporting 17Wake-On-LAN and RealWoW! Technology remote wake-up support 18Supports 32-set 128-byte Wake-Up Frame pattern exact matching 19Supports Microsoft WPI Wake Packet Indication 20Supports PCIe L1 substate L1.1and L1.2 21Supports jumbo frame to 16K bytes 22Supports Full Duplex flow control IEEE 802.3x 23Compatible with IEEE 802.3, IEEE 802.3u, IEEE 802.3ab, Supports IEEE 1588v1, IEEE 1588v2, IEEE 802.1AS time synchronization, Supports IEEE 802.1Qav credit-based shaper algorithm, Supports IEEE 802.1P Layer 2 Priority Encoding, Supports IEEE 802.1Q VLAN tagging, Supports IEEE 802.1ad Double VLAN, Supports IEEE 802.3az Energy Efficient Ethernet, Supports IEEE 802.3bz 2.5GBase-T 31000M RTL8111E Network Card Features: Compliant with PCI Express rev 1.1 specification. Compliant with CSMA/CD protocol Supports Windows XP/Vista/7 32/64-bit, Server 2003 32/64-bit, Linux Windows 10 LED Data Transmission Indicators Supports ACPI Power Management, compliant to ACPI 2.0 Data Transfer Rate:10/100/1000 Mbps Chipset:Realtek RTL8111C External Ports:1x RJ-45 Ethernet Port Host Interface:PCI Express PCI-E Package List: 1 X PCI-E Network Card