FEATURE – Complies with IEEE 802.3, IEEE 802.3u, IEEE 802. 3x auto-negotiation – Optional 19″System Chassis holds up to 14 Media Converters – Extends distances ranging from 2km (multi-mode fiber) to 120km (single mode fiber) – Auto-negotiation support on R.J-45 port – Auto-negotiation of duplex(HDX/FDX) on RJ-45 port – Auto MDI/MDI-X support on RJ-45 port – Status LED’s for TX, FX LINKJACT, POWER, 100M to easily monitor network status – Extemal power supply – Supports packet length up to 1600 bytes – FCC Class A & CE approved , RoSH