"Dual-purpose slimline gender changers/socket savers allow mismatched Centronics connectors to mate and extend connector life by taking the abuse of frequently mated connectors. The low profile design reduces leverage strain on overstressed computer ports and is fully shielded for electrically noisy environments. The 36 position connector is typically found on printer cables and ports. The 50 position connector is typically found on Telco and SCSI-1 cables and ports. Quantity pricing available, please contact your L-com Sales Representative."