This This cable is use for smart phone (With OTG function) to printer , Scanner , electronic piano and Electronic drum Please install “PrinterShare” APP ( from google play) in your phone while connect your phone to printer , Scanner Please install music App in your phone while connect your phone to Electronic drum Piano or other Specifications Connect A : Micro USB USB2.0 male Connect B : USB TYPE B / Printer usb.20 male Length :2M /6FET Color : black Items Included 1 x cableLEGACY COMPANION USB B to MICRO USB Cable for connecting your existing USB 2.0 printer, scanner or legacy external hard drive with USB B to newer computers with MICRO USB Supports Hi-Speed USB 2.0 data transfer rate up to 480 Mbps; MICRO USB to USB-B cable offers a faster and more secure connection over Wi-Fi when printing or scanning important documents. ENGINEERED TO LAST with a flexible cable, sturdy construction, and USB connectors with molded strain relief for frequent unplugging; Fully shielded to provide superior transmission performance and project against EMI/RFI noise; Robust micro usb printer cable clicks into place for a snug and secure connection; Lifetime warranty and product support for this cable provides peace of mind when purchg. USB B TO micro USB CABLE connects a smart phone tablet laptop computer with a MICRO USB port to a printer, scanner, printer switch Scanner,electronic piano,Electronic drum,Digital piano , external hard drive or legacy peripheral device with a USB 2.0 Type B port; Reversible MICRO USB connector plugs and unplugs easily without checking for the cable orientation. Directly connect MICRO USB PHONE /TABLET SUCH as samsung LG GOOGLE NEXUS HTC HUAWEI ZTE SONY to a printer or scanner ,electronic midi piano drum,Digital piano directly connect MICRO USB PHONE /TABLET SUCH as samsung LG GOOGLE NEXUS HTC HUAWEI ZTE SONY to a printer or scanner ,electronic midi piano drum,Digital piano. COMPATIBLE with devices with a USB Type B port such as a multifunction, laser or thermal printer, desktop document scanner, midi controller, midi keyboard, development board, UPS, or other legacy device from Arduino, Brother, Canon, Dell, Fujitsu, HP, IOGEAR, Lexmark, and Panasonic.