NMB 122244-001 AT Keyboard RT2157TW Cherry MX Mechanical

NMB 122244-001 AT Keyboard RT2157TW Cherry MX Mechanical

This is a vintage NMB mechanical keyboard from the 1980s–1990s era, featuring authentic Cherry MX mechanical switches and the standard AT/XT protocol 5-pin DIN connector. NMB (Nan Ya Plastics) was a major manufacturer of high-quality computer peripherals during the personal computer boom, and their mechanical keyboards are highly sought after by retro computing enthusiasts and mechanical keyboard collectors. This model combines the tactile, audible feedback of genuine Cherry MX switches with the robust ABS plastic construction typical of that generation.

Specifications & What's Included

• Brand: NMB (Nan Ya Plastics)
• Model: 122244-001
• Secondary Model: RT2157TW
• Type: Mechanical Keyboard – AT/XT Protocol
• Switch Type: Cherry MX Mechanical Switches
• Switch Mechanism: Full mechanical, clicky tactile feedback
• Interface: 5-pin DIN connector (AT/XT standard)
• Layout: Full-size keyboard with integrated numeric keypad
• Keycaps: ABS plastic, standard AT-era profile
• Country of Manufacture: Taiwan
• Era: Mid-to-late 1980s – 1990s

Applications

AT-protocol mechanical keyboards like this NMB model are primarily used on vintage IBM AT-compatible computers and compatible systems from the 1980s and 1990s. These keyboards are still actively used and valued by retro computer enthusiasts, collectors, and vintage gaming enthusiasts who appreciate the authentic mechanical switch experience. The Cherry MX switches provide the distinctive clicky tactile feedback that defined mechanical keyboards of that era. Beyond legacy systems, many users employ USB-to-AT converter adapters to integrate vintage mechanical keyboards into modern gaming setups, where the reliability and key feel of genuine Cherry MX switches command premium interest. This keyboard represents the standard office and computing workhorse of its generation—durable, uncomplicated, and built to last.