Parallel port computer hi-res stock photography and images - Alamy
1,191 Parallel Port Images, Stock Photos & Vectors | Shutterstock
Copy protection dongle
Software protection dongle - Wikipedia
parallel port to usb adapter | eBay
Software protection dongle - Wikiwand
Bit Banging Through A USB Parallel Port Adapter | Hackaday
StarTech.com 6 ft. (1.8 m) USB to Parallel Port Adapter - IEEE-1284 - Male/Male - USB to Centronics Cable (ICUSB1284)
Software protection dongle - Wikipedia
USB 2.0 To DB25 IEEE-1284 Parallel Printer Cable Adapter [HEXNUT Conne - Sabrent
Dongles, how do they work? – Joe's Security Blog
1 Port ExpressCard Parallel Adapter Card - Parallel Cards & Adapters | StarTech.com
Parallel to USB converter
parallel port - Is this an old school copy protection device? - Super User
StarTech.com 6 ft. (1.8 m) USB to Parallel Port Adapter - IEEE-1284 - Male/Male - USB to Centronics Cable (ICUSB1284)
6ft (1.8m) USB to DB25 Parallel Printer Adapter Cable | USB Adapters | USB Cables, Adapters, and Hubs | USB and PC
USB 1.1 Over Cat5 Superbooster™ Extender Dongle Transmitter | USB Extension Cables and Devices | USB Cables, Adapters, and Hubs | USB and PC
USB To DB25 Adapter Uses GRBL For Parallel Port CNC Communication | Hackaday
