SNKB-X198x-KB-139
Notes
This keyboard was featured in my Exploring the elusive IBM 4683 Matrix Keyboard P/N 76X0100 article, which was likely one of the first full teardowns of the keyboard published. I received the keyboard in like-new condition; it was originally NOS but previous owner u/drake9800 who had it for only a short time opened the keyboard to figure out what it was since no concrete background material on the keyboard existed before.
| Full Name | IBM 468X POS Matrix Keyboard |
| Part NumberPart Number The number used to describe this keyboard's specific release; usually specific for a target region, language or SKU, etc. |
76X0100 |
| Market Model Name/Feature CodeMarket Model Name/Feature Code The consumer-friendly model number describing this keyboard as a part of a range of products, usually irrespective of target region, language or SKU. |
3323 |
| TypeType A designation from my own type naming scheme used to categorise this keyboard with or from others by their common features and market intent but may/may not be derived from official names. |
4680 POS Matrix Keyboard |
| Key-switchesKey-switches The name of the known switching mechanism that lies under this keyboard's keys. |
Key Tronic capacitive foam and foil (tactile variant) |
| Original KeycapsOriginal Keycaps The keyboard's original keycaps' material and text/symbol printing technique. |
ABS with double-shot legends |
| FeetFeet The style of this keyboard's flip-out or extendable feet. If applicable, this may also state how many levels of height adjustment are available and whether the feet could be rubberised. |
None |
| ProtocolProtocol The protocol(s) this keyboard can use to speak to the host computer (eg, scancode sets). |
SIO via RS-485 |
| ConnectionConnection The keyboard-to-host connection. This is could be a description of a cable (its colour, whether its coiled, whether its detachable, and what connector is at its end) or the name of a wireless technology. |
Grey straightened-style detachable 8-pin SDL to 8-pin SDL cable |
| Form FactorForm Factor The standardised or universally acknowledged name for this keyboard's layout form factor. |
Full-size matrix |
| Production Date | 1980s |
| Acquisition Date | 2021-06-21 |
