SIIG, Inc JK-US0012-S1 USB Keyboard 103 Keys Black

Full-size USB desktop keyboard

The SIIG JK-US0012-S1 is a standard 103-key QWERTY keyboard with a numeric keypad designed for everyday office and home computing. It connects through a single USB port and installs drivers automatically on supported Windows systems from 2000 through Windows 7. The black membrane construction keeps the profile low at .98 inches high and the weight to 1.10 lb.

103-key layout with membrane switches

The key count covers full alphanumeric, function and numeric sections for spreadsheet work, data entry and general typing. Soft membrane switches with 3.2 ±.4 mm travel deliver quiet keystrokes but lack the tactile feedback or actuation-point consistency that mechanical typists or competitive gamers usually prefer. The design includes no palm rest, so users who need wrist support during long sessions will want a separate accessory.

Water-resistant membrane and plug-and-play USB

A sealed membrane layer resists short circuits from accidental liquid spills, adding durability in shared or casual environments. The cable uses USB 1.1 signalling, so it works on any standard USB port without extra software or power adapters. No multimedia hotkeys, macro programming or backlighting are included, limiting customisation for power users who rely on dedicated media controls or per-key lighting.