This Cable is a splitter that allows you to connect a USB device to your fire stick. Any mini keyboard such as the one in the images can connect with the Fire Stick by plugging the small USB dongle into the cable's USB port and instantly the mini keyboard will work.
New USB PORT ADAPTER OTG Cable for FIRE TV 3 OR 2nd Gen FIRE STICK
1~8PCS Usb Port Terminal Adapter Otg Cable For Fire Tv 3 Or 2nd Gen Fire Stick - AliExpress
Fire TV stick accessories - RJ45 LAN port to add wired internet and USB data hub to add external memory for Fire TV Stick Lite, 4K Max, TV Cube
USB OTG Cable Ethernet Adapter for Fire Stick 4K TV Cube Max Lite, Alexa Show 2nd Gen, Show 5 and Show 8
TV xStream USB Ethernet LAN adapter for Fire Stick (2nd Gen) or Fire TV (3rd Gen) or 4K Firestick. Step 2 - Insert the Power cable into
Fire Stick ETHERNET ADAPTER & USB OTG cable for 2nd Gen and 4K Firestick
Fire TV Stick 4K supports external USB drives and USB peripherals via an OTG cable
USB OTG Cable For Fire Stick 2nd 3nd Gen Ethernet Adapter TV-xStream
USB OTG Cable for Fire Stick 2nd 3nd Gen Ethernet Adapter TV Xstream
US 1-2 Pack Micro USB to USB Adapter OTG Cable For Fire TV 3 And 2nd Gen
For Fire Stick Usb Otg Port Adapter Cable 4k 2nd Gen Fire Cube & Fire Tv3