Features: Both front and back side can be inserted. Stable and fast. As we know that Raspberry Pi Zero is very tiny, and it does not have standard USB port to connect your standard USB devices, so it may hard to access like other Raspberry Pi version. Most of you are likely to access Linux OS via SSH service. Our long term goal will be to use SSH over USB. This means that we have to configure Raspbian to treat the USB port like an Ethernet port. it can make your Raspberry Pi zero became a USB stick to your computer, so that you can access your Raspberry Pi easier than before. It's high qualified and easy to assemble, you can make your Raspberry Pi Zero became a USB Ethernet dongle in minutes. Specifications: Material: ABS Length: approx. 8.5cm/3.35in Note: Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1PC x USB Dongle Module 1PC x Acrylic Board Kit 1Set x Screws