C&E 30-Pin to USB OTG On The Go Adapter Cable for Samsung Galaxy Tab - White (CNE95707) The 30-Pin to USB OTG Adapter Cable is 6 inches long. Expand the capabilities of your Samsung Galaxy Tab 30-Pin to USB OTG Adapter Cable. This accessory allows you to transfer multimedia files from any USB storage device into your Samsung Galaxy tablet. You can even turn your tablet into a USB host, giving you the ability to connect compatible USB devices such as keyboards, mice, etc. Not compatible with the Samsung Galaxy Tab SGH-i987 AT&T, Samsung Galaxy Tab SCH-i8000.