Features: 100% Brand-New. 1 RJ45 ports and 1 SC optical port . Meets IEEE802.3z/AB 1000Base-T standard and 1000Base-SX/LX 10/100M optical port is full duplex mode ;Ethernet port 10/100M adaptive mode Ethernet interface can adaptively direct line / crossover cable connection Ethernet ports support full / half duplex mode Supports a maximum of 9K bytes long packets IEEE802.3X flow control support full-duplex , half-duplex backpressure flow control Support Link Fail Pass fiber breakage detection function ( optional ) UTP ethernet cable up to 100 meters ; longest 25 km single-mode fiber There are six LED indicators : Power, FX Link / Act, TX 100, TX 1000, TX FDX, TX Act to facilitate the monitoring of transceiver operating status and determine the cause of failure Internal power supply : AC100 ~ 265V / DC5V switching power supply Working temperature : 0 ~ 50 degree Storage temperature : - 40 ~ 70 degree Built-in power Package: ESD package box. Specifications: Telecommunications Broadcasting Broadband fiber optic network data traffic Any need to improve performance, High-reliability network environment. Package Includes: 2 x 10/100M ethernet to fiber converter (A & B) 2 x Power supply 1 x User manual