KB60 USB programmable keyboard with electronic lock PS2 Optional Small Keyboard with magnetic card reader-in Scanners from Computer & Office on Aliexpress.com | Alibaba Group
MAX FALCON-20 RGB Custom Programmable Mini Macropad Mechanical Keyboard (Assembled)
USB Mini 21 Keys Static Capacitance Smart Numeric Programmable Keyboard POS PIN Pad With 3 Electronic Lock KB21U From Hcteco, $34.18 | DHgate.Com
PREHKEYTEC Programmable Keyboard - Compact, 128-Key, Row and Column, USB, Wired - 90328-614/1805 at TigerDirect.com
G84-4700LUCUS-2 - Cherry - Numeric Keyboard - Programmable Keypad Corded, USB, 21key, Black - 5.2in. d x 1.4' h x 3.5in. w - Black