Supports 2.5G Lite (1G data rate) mode Supports PCI Express 2.1 Supports 4 high-performance 2.5-Gigabit LAN ports with Extended Next Page (XNP) auto-negotiation compatible with NBASE-TTM Alliance PHY specification Support for switching/polarity/skew correction Cross detection and auto-correction Supports hardware ECC (Error Correction Code) functionality Hardware CRC (Cyclic Remainder Check) support mit/receive on-chip buffer support PCI MSI (Message Signalling Interrupt) and MSIX support Supports power down/link down power saving/PHY disable modes Supports ECMA-393 ProxZzzy standard for sleep hosts Supports LTR (Latency Tolerance Reporting) Supports 32 groups of 128-byte wake-up pattern exact matches Supports Microsoft wPI (Wake-up Packet Indication) Supports PCle L1 sub-state L1.1 and L1.2 Compatible with IEEE 802.3, IEEE 802.3u, IEEE 802.3ab Supports IEEE 1588v1, IEEE 1588v2, IEEE 802.1AS time synchronisation Supports IEEE 802.1Qav credit-based shaping algorithm Supports IEEE 802.1P Layer 2 priority coding Supports IEEE 8021Q VLAN tagging Support for IEEE 802.1ad dual VLANs Support for IEEE 802.3az (Energy Efficient Ethernet) Support for IEEE 802.3bz (2.5GBase-T) Supports full-duplex flow control (IEEE 802.3x) Supports 16K bytes jumbo Supports standard and small form factor chassis Due to different batches, there may be differences in product appearance and printed text, which will not affect use. Colour:As Shown Material:PCB Package Contents: 1 * Ethernet Network Card 1 * Low Profile Bracket 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.