[ KEYBOARDS AND INTEGRATED POINTING DEVICES // IDENTIFIED COMPONENT ]

Lenovo ThinkPad TrackPoint Keyboard II

Compact wireless ThinkPad-layout keyboard with integrated TrackPoint and three-button pointing controls.

MODEL IDENTIFICATION: Manufacturer identity: 4Y40X49493. Compare the unit label, regional suffix, and revision against the manufacturer's manual before repair or compatibility claims.

Model specifications

Catalog subcategory	Keyboards and integrated pointing devices
Exact model / ID	4Y40X49493
Model-specific features	Bluetooth 5.0 or 2.4 GHz USB nano receiver; rechargeable internal battery; TrackPoint with middle-button scrolling; USB-C charging port.
Interface and host support	Keyboard and pointing functions are exposed over Bluetooth or the supplied receiver. Bluetooth pairing, receiver mode, and operating-system TrackPoint options vary by host; USB-C is for charging.
Revision / driver caveat	Confirm product number 4Y40X49493 and keyboard layout printed on the bottom label. Do not assume USB-C is a wired data connection. Some Fn, TrackPoint, or firmware functions depend on operating system support.

Preservation and service notes

Use the manufacturer charging lead and avoid prying the sealed rechargeable battery. Keep the small wireless receiver with the unit; inspect TrackPoint cap and USB-C port before service.

Record the as-found label, accessories, host OS, driver/firmware version, and test method. Separate observed condition from published specifications; do not treat family-level feature claims as proof of a unit's revision.

Primary manufacturer documentation

Lenovo support — ThinkPad TrackPoint Keyboard II (4Y40X49493)Manufacturer support article for the exact product number; access may require a compatible locale.
Lenovo support and manualsManufacturer portal for model-specific setup, software, and manuals; search by product number 4Y40X49493.

Manufacturer pages may change or retire. Preserve a copy of the applicable manual and note its revision when documenting a physical unit.