Black Box 4-to-1 CAT6 10-GbE Manual Switch (ABCD)The Black Box 4 to 1 CAT6 10 GbE Manual Switch (ABCD) is a purpose built, high performance device designed to give you secure, rapid access to multiple networks from a single desktop. Built to support everything from legacy 10BASE T to cutting edge 10 Gigabit Ethernet (10 GbE), this compact switch delivers precise, manual control over network selection while maintaining total electrical isolation. Ideal for environments where security and simplicity