[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 fer rate of 480 Mbps, the printer can print a page in seconds. Usb type b cable is backward compatible with full speed USB 1.1 (12 Mbps) and low speed USB 1.0 (1.5 Mbps).[Wide compatibility]This printer cord is compatible with for HP deskjet 2540 / 3630, for HP officejet 5740, for HP Envy 4527 / 4520 / 4523 / 5540, for HP photosmart 7520 / 5520 / 5510, for Canon MG5750 / MG3550 / MG7550, for Samsung Xpress SL-C1860FW etc.[High Quality]Fully shielded cable and flexible sheath make usb 2.0 cable very durable, they won'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 will notColour:BlackMaterial:PVCSize:A:1.5m + branch line 1m/B:2 meters + branch line 2.5 meters Package Contents:1 x Printer CableOnly 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.