Auto-uplink MDI-II/-X, IEEE 802.3x flow control with full-duplex operation. Jumbo frame support up to 2047 bytes. IEEE 802.1p priority control via 2 queues (strict mode). IEEE 802.3az EEE (Energy Efficient Ethernet) compatible, automatically switches to power-saving mode during data transfer pauses and when connections are unused. Reduced power consumption, lower heat generation, longer service life, and lower operating costs with a black metal housing.