Economy version; Does not support printer control. - Reversible, bi-tronic parallel auto switch with a file transfer function, 2 users to 1 printer or vice versa. Does not support printer control; all three ports are DB25 female. Use cables 37006 (1 per PC) and 37004 (1 per printer)....

4 to 1 manual data switch....

Computers Support: 4 - Printers Support: 1 - Switching Type: Manual - Connector Type: 4 x DB9 Female - 1 x DB9 Male - Compatibility: - Mac - PC - Dimensions: 6" Height x 6" Width x 2.50" Depth - Additional Information: - Durable Metal Case - Unix Compatible - -...

4 to 1 manual USB switch....

APC's remote power-off device allows you to turn off the power output of APC UPSs with a remote switch. Use with an Emergency Power-Off system for complete protection in emergencies. This Serial On/Off Switch immediately turns off the power output of connected APC UPSs....