Integrated on-chip USB3.0 PHY and controller, compliant with USB Spec 3.0, 2.0 and 1.1 Supports USB Super/High Speed/Full Speed modes with automatic detection of self-powered devices Supports quad-port Gigabit Ethernet Supports IEEE802.3az (Energy Efficient Ethernet) Compatible with for IEEE 802.3, IEEE 802.3u and for IEEE 802. Integrated 10/100/1000 Mbps Gigabit Ethernet PHY Supports crossover detection and automatic correction Supports power-down/link power-down power saving Supports NDIS 5, NDIS 6 checksum offload (IPv4, IPv6, , UDP) and segmentation task offload (Large send v1 and Large send v2) Supports Large Send Offload V1 Supports full-duplex operation, supports IEEE802.3x flow control Supports IEEE802.1P Layer 2 priority encoding and decoding Supports IEEE802.1Q VLAN tagging Supports IEEE 1588 V1, V2, compliant with IEEE802.1ASIEEE 1588 clock synchronization Supports jumbo frames up to 9 K bytes Upstream port: USB3.0 Type-B Downstream port: 4 x RJ45 copper cable ports (The product printed words depending on the batch, but this does not affect use) Color: As Shown Material: plastic Package Contents: 1 * Gigabit Ethernet Adapter 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.