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Barcode scanners
USB
USB devices plug directly into the compatible device and generally offer very reliable connections. If you are using Square Stand, Square Register or Square Terminal, you can plug your USB accessory directly into the USB hub on the power cord. For Android devices, you’ll need to connect through a USB OTG (On The Go) adapter. Make sure you check that your Android device supports USB OTG or USB Host mode.
Ethernet
Ethernet devices plug into your router using an Ethernet cable. Once connected to your router via the Ethernet cable, your hardware accessories will connect to your device through the Wi-Fi connection. Keep in mind, you won’t be able to use Ethernet connection in Offline Mode.
Wi-Fi
Wi-Fi devices connect wirelessly to your router. Once connected to your Wi-Fi, your hardware accessories connect to your device through the shared Wi-Fi connection. Ensure that both your device and your hardware accessories are connected to the same Wi-Fi network, if they are on different networks the connection will not be successful.
Bluetooth
Bluetooth devices connect to your device wirelessly using the Bluetooth connection. Bluetooth works best in close proximity. You’ll want to make sure that your device and your hardware accessories are all within 10 feet of each other.
Printer-driven
Some cash drawers connect directly to a compatible receipt printer in order to open automatically. You can manually open your cash drawer with a key if they are unplugged.
If your inventory utilises barcode technology for tracking purposes, you can connect a barcode scanner directly to your Square hardware. A barcode scanner allows your cashiers to quickly process items without having to scroll through your item library.
*Android with Square Reader is only compatible with devices running 9.0 and older
**Discontinued model, but still compatible with Square Point of Sale
⁴When running the Square Kiosk app, Square Kiosk hardware cannot be connected directly to external accessories via Bluetooth, USB or Ethernet. When running all other Square POS software, Square Kiosk hardware is compatible with the same accessories as Square Stand.
