[Function]This printer cable can connect printers, scanners, hard drives, cameras, pianos and other usb b devices to two computers; it is ideal for usb a to usb b. [Special advantage]This printer usb cable has a separate switch to control the power on, no need to unplug it every day, convenient and easy to enhance the security. [High speed printing] This printer cord to computer has a data transfer rate of 480 Mbps, the printer can print a page in seconds. Usb type b cable is backward compatible with USB 1.1 (12 Mbps) and low speed USB 1.0 (1.5 Mbps). [Wide compatibility]This printer cord is compatible with for deskjet 2540 / 3630, for officejet 5740, for 4527 / 4520 / 4523 / 5540, for photosmart 7520 / 5520 / 5510, for MG5750 / MG3550 / MG7550, for Xpress SL-C1860FW etc. [High Quality]Fully shielded cable and flexible sheath make usb 2.0 cable very , they 't let you down. The appearance of the switch in the middle of the cable is random due to different batches,don't accept the specified color; there are errors in the size due to manual measurement, which not Colour:Black Material:PVC Size:B:2 meters + branch line 2.5 meters Package Contents: 1 x Printer Cable Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.