The GEM series from Adder Technology offers premium performance at economical prices. 2 and 4 port models feature bright green 7 segment LED display as well as sturdy metal construction. Standard PS/2 connectors (Mini DIN 6 for keyboard and mouse, HD15F for monitor) make connections simple because standard cabling can be used. Units use flash upgradeable processors for future firmware upgrades. Fully DDC/DDC1/DDC2 compliant for use with the latest monitor types. Features a 1-year manufacturers warranty. Contact us today for large project volume discounts !