8Ch Active MUX with built-in EDFA amplifers, up to 8 x 400G to reach max of 120km, Net Power Budget 30dB (calculation based on 100% population of ports), Channels 20-27 C-Band 100Ghz, Extension port (CH17-19 & 28-60), 1625nm Port for external OTDR and 1% Monitor port, Dual AC 100/240V, ethernet and console management ports, 1RU 19" enclosure.