P/N 31P9491 - UltraNav Keyboard Details & Specs

IBM USB Travel Keyboard with UltraNav

FRU Part NumberFRU Part Number
Field Replaceable Unit
The number used to relate and indicate compatible but otherwise potentially different keyboards that could replace this one.
02R0431
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.
SK-8845
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.
SK-8840/SK-8845/SK-8845RC ThinkPad-style Keyboard
OEMOEM
Possible companies responsible for making this keyboard for the company marketing it.
LITE-ON
Key-switchesKey-switches
The name of the known switching mechanism that lies under this keyboard's keys.
LITE-ON SK-8835/SK-884x type scissor-stabilised rubber domes
Earliest AppearanceEarliest Appearance
The year (and possibly the quarter) that this keyboard part number was introduced, first observed, first recorded or the first example found.
2004
Casing ColourCasing Colour
The original colour of this keyboard's outer casing. For keyboards whose casing materials are known to yellow, this will refer to the original colour before such transformation occurs.
Raven/Stealth Black
BrandingBranding
The possible branding and logo styles found on this keyboard part number. This could be multiple styles at once or possible styles found over time.
Generic IBM logo
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.
Dual-setting flip-out feet
ProtocolProtocol
The protocol(s) this keyboard can use to speak to the host computer (eg, scancode sets).
USB HID
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.
Black straightened-style fixed Type A USB cable
Key CountKey Count
The number of keys that this keyboard originally had.
86
Form FactorForm Factor
The standardised or universally acknowledged name for this keyboard's layout form factor.
Tenkeyless (compacted)
Layout/LanguageLayout/Language
Image of Layout/LanguageThe original regional/language layout this keyboard was configured as. Both the language and the standardised key layout may be listed, and in the case of both being known or defined, it will be styled as language then standard.
French/Canadian
Built-In MouseBuilt-In Mouse
Possible pointing devices this keyboard could carry. This could be a brand name, name of the sensor technology behind it, or a generic description in lieu of the former details.
Synaptics TouchStyk FSC pointing stick & TrackPad UltraNav
Source(s)Source(s)
Documents ("Doc"), websites and/or webpages ("Web") that were used as a source of information for this keyboard part number. Examples of this keyboard part number I own ("ASK") will also be included as sources.
Web: https://web.archive.org/web/20041206130257/http://www-307.ibm.com/pc/support/site.wss/document.do?lndocid=MIGR-45850
Data Last Updated 2021-12-18

More on this type of keyboard...

Variant of a SK-8840/SK-8845/SK-8845RC ThinkPad-style Keyboard
Variant of a SK-8840/SK-8845/SK-8845RC ThinkPad-style Keyboard
Variant of a SK-8840/SK-8845/SK-8845RC ThinkPad-style Keyboard

The SK-8840, SK-8845 and SK-8845RC were the most common members of the LITE-ON produced SK-8835/SK-884x ThinkPad-style keyboard family. The SK-8840 and SK-8845 were both introduced in 2004 as the PS/2 and USB version (respectively) of the same design. The SK-8845RC was released by 2010 and was a variant of the SK-8845 with a longer USB cable. All three made use of the Synaptics TouchStyk pointing stick and Synaptics TouchPad trackpad. Market names include IBM PS/2 Travel Keyboard with UltraNav (SK-8840), IBM USB Travel Keyboard with UltraNav, IBM USB Travel Keyboard Option (SK-8845), IBM UltraNav USB Keyboard or IBM Keyboard with Integrated Pointing Device USB (SK-8845RC).

Navigation...