This Dual Port Gigabit Ethernet Bypass server adapter does supports Normal and Bypass modes. In  Normal mode, the ports are independent interfaces. In Bypass mode, all packets received from one  port are transmitted to adjacent port, the connections of the Ethernet ports are disconnected from the  system and switched over to the other port to create a crossed connection loop-back between the  Ethernet ports.

Features Performance Features:

• 8 Transmit and 8 Receive queues per port

• Up to 8 queues of Receive Side Scaling (RSS) minimize CPU utilization across multiple processor  systems

• Support for up to 8 virtual functions (VFs)

• Support for 8 pools (single queue) of virtual machine Device Queues (VMDq) per port

• TSO interleaving for reduced latency

• UDP, TCP and IP checksum offload 

Bypass:

• Bypass Ethernet ports on Power Fail, System Hangs or Software Application Hangs

• Software programmable Bypass, Normal Mode

• On Board Watch Dog Timer (WDT) Controller

• Software programmable time out interval

• Software programmable WDT Enable / Disable counter

• Software programmable Bypass Capability Enable / Disable

• Software Programmable mode (Bypass, Normal) at Power up

• Independent Bypass operation in two ports 

Common Key features:

• Support PCI Express Base Specification 2.1  

• High performance, reliability, and low power use Intel I350 Dual integrated MAC + PHY chip controller

• Jumbo frame supports up to 9.5Kbytes

• Supports IEEE 802.1Q VLAN tagging, and IEEE 802.3x Fully Duplex Flow Control

• LEDs indicators for link/activity status

• Industry Standards：IEEE 802.3, IEEE 802.3u, IEEE 802.3x, IEEE 802.3ab

• Humidity 20~80% RH

• Operating Temperature 5°C to 50°C (41°F to 122°F)

• Storage Temperature -25°C to 70°C (-13°F to 158°F)

Included in Package

• 1 x Dual Port Copper Gigabit Ethernet PCIe Bypass Server  Adapter

• 1 x Low profile bracket