Integrated 10/100/1000M/2.5G transceiver. Supports 2.5G and 1G Lite mode. Auto-Negotiation with Extended Next Page capability(XNP). Supports PCI Express 2.1. Supports pair swap/polarity/skew correction Configurable port ordering( swap) for easy PCB layout. Crossover Detection&Auto-Correction. Supports 1- 2.5/5Gbps PCI Express Bus. Embedded OTP memory can replace externaEEPROM LAN disable with GPIO pin. Customized . Controllable LED Blinking Frequency and Duty Cycle. Self-Loopback diagnostic capability. Thermamanagement. SeriaEEPROM. Supports 32Mbytes ExternaSeriaPeripheraInterface(SPI) Flash. Supports ECMA-393 ProxZzzy Standard for sleeping hosts. Supports LTR(Latency Tolerance Reporting) Wake-On-LAN and "RealWoW!"Technology(remote ) support. Colour:black+red+silver Material:PCB+metal Package Contents: 2 x Network Card Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.