Barcode Reader/Scanner Module - CCD Camera - USB Interface : ID 1203 : $69.95 : Adafruit Industries, Unique & fun DIY electronics and kits
Bar Code Scanners LV30 TTL232 Raspberry Pi OEM Barcode Scanner 1D 2D Qr Bar Code Module bramberkien.com
Amazon.com : Barcode Scanner Module, 1D/2D Codes Reader Decode Barcode, QR Code etc Onboard Micro USB and UART Interface Plug into a Computer Directly or Other Device Onboard Light Source can Work
GM65 1D 2D QR Code Scanner Barcode Reader Module CMOS URAT USB Cable 617nm LED | eBay
GM77 Barcode and QR Code Scanning Module - DFRobot