1Powerful chip, it uses imported original chips from Taiwan to make the speed faster and more stable. 2The external of the network card chip interface shielded with gold-plated interface, flat contact with internal contact, gold plated 25mm. It can effectively reduce contact resistance, improve signal anti-interference, and make data transmission smooth. 3Gold finger is 5mm thick gold plated, reliable contact and less disconnection, can effectively reduce lost packets and data delay. 4This product uses high quality material and fine craft. It is durable and reliable. 5High Compatibility. It is compatible with x4, x8, and x16 full-height PCI Express slots. And it supports for most network operating systems (NOS). Features: 1. Powerful chip, it uses imported original chips from Taiwan to make the speed faster and more stable. 2. The external of the network card chip interface shielded with gold-plated interface, flat contact with internal contact, gold plated 25mm. It can effectively reduce contact resistance, improve signal anti-interference, and make data transmission smooth. 3. Gold finger is 5mm thick gold plated, reliable contact and less disconnection, can effectively reduce lost packets and data delay. 4. This product uses high quality material and fine craft. It is durable and reliable. 5. High Compatibility. It is compatible with x4, x8, and x16 full-height PCI Express slots. And it supports for most network operating systems (NOS). 6. Remote management support. Category-5 unshielded twisted pair (UTP), 4-pair cabling. RoHS compliant, lead-free technology. For Intel pro set utility for Microsoft device manager. Advanced cable diagnostics. Specification: Applicable Network Type: Gigabit Ethernet Transmission Rate: 10 or 100 or 1000Mbps Bus Type: PCI-E 1Xslot Full or Half Duplex: Adaptive Network Interface Type: 2 x RJ45 Applicable Models: Desktop and server Transmission Medium Type: Category 4 UTP Network Standards: IEEE802.3, IEEE802.3u, IEEE802.3ab, IEEE802.3x Main Chip: For Intel 82575 Gigabit Controller Package List: 1 x Network Card 1 x CD 1 x Iron Sheet Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.