Microsoft Wireless Desktop 900 Combo

General

Connectivity

Keyboard

Mouse

Power & Compatibility

Specifications Microsoft Does Not Publish for This Product

The following are commonly asked about but are not stated on any current official Microsoft source for this part number, so SourceIT does not quote them: component names, dimensions, weight, colour and resolution in DPI. We would rather leave a field blank than print a figure we cannot substantiate.

Microsoft has withdrawn its own-brand PC accessory catalogue. The microsoft.com/accessories product pages for this range now redirect to Microsoft's general hardware-warranty and PC-accessories support pages, and the Microsoft Store Singapore PC-accessories collection returns no results. Microsoft has published no formal discontinuation notice for this product; the evidence is the removal of the pages themselves.

This set is the exception in Microsoft’s withdrawn accessory range. Its routed Microsoft Store listing survives with the complete specification table intact, including a published warranty term, where the equivalent pages for the other sets in this range have been stripped or removed entirely. The product shows as out of stock at Microsoft.

Microsoft’s published warranty terms are inconsistent across this range. This set is published at three years; the Microsoft Bluetooth Desktop for business is published at one year; and Microsoft’s current PC accessory warranty page names no term at all and directs buyers to their proof of purchase. We publish the three-year figure for this set because Microsoft publishes it for this set, and we attribute it.

This set is not named in the current Mouse and Keyboard Center supported-device list, although a Wireless Keyboard 900 and a Wireless Mouse 900 are listed as individual components.

This listing shows zero inventory in our system. Contact SourceIT for the current stock position and lead time before you raise a purchase order.

Warranty Position

Microsoft’s surviving Microsoft Store specification block for this set publishes a 3-year warranty — the longest term Microsoft still publishes for any product in this range, and three times the term published for its Bluetooth Desktop for business. Note that Microsoft’s current PC accessory warranty page names no term at all and directs buyers to check their proof of purchase, so the two Microsoft sources do not agree. We publish the Microsoft Store figure and attribute it. SourceIT supplies the set with local support and a GST invoice; ask us to confirm the warranty position in writing before you order.

SourceIT supplies this product in Singapore with a three-year local warranty, which is the term stated in the heading of this listing. That term is SourceIT's, not a figure quoted from Microsoft.

Microsoft publishes Windows 11 Home and Pro, Windows 10, Windows 8.1, Windows 8 and Windows 7, together with Mac OS X v10.4 to v10.10.3. The interface is USB 1.1, 2.0 and 3.0 compatible.

The wireless link is 2.4 GHz, rated at 10.06 metres in open areas and 4.57 metres in typical office settings. This is not a Bluetooth set, so it needs a free USB port.

The mouse uses LED optical tracking. This is not BlueTrack — if you specifically need BlueTrack for difficult surfaces, choose a different model, because LED optical is more sensitive to surface texture.

This set is not named in the current Microsoft Mouse and Keyboard Center supported-device list, though a Wireless Keyboard 900 and a Wireless Mouse 900 appear as individual components.

• Microsoft Wireless Desktop 900 — Microsoft Store technical specifications, including the 3-year warranty
• Microsoft PC accessory warranty — support.microsoft.com
• Devices supported by Microsoft Mouse and Keyboard Center
• Microsoft PC accessories support hub

Every figure on this page comes from the Microsoft Store specification block linked above, which is the most complete surviving Microsoft source for any set in this range.

What warranty does this set carry?

Microsoft publishes a three-year warranty for the Wireless Desktop 900 on its surviving Microsoft Store specification block — the longest term it still publishes for anything in this range. Note that Microsoft’s current PC accessory warranty page names no term and directs buyers to their proof of purchase, so ask us to confirm the position in writing before you order. SourceIT supplies this product in Singapore with a three-year local warranty, which is the term stated in the heading of this listing. That term is SourceIT's, not a figure quoted from Microsoft.

Is the keyboard encrypted?

Yes. Microsoft publishes 128-bit AES encryption and states explicitly that it applies to the keyboard. Microsoft names the component here, which it does not do on its pages for the other sets in this range.

How long do the batteries last?

Microsoft publishes 24 months typical, on two AAA alkaline batteries for the keyboard and two AA alkaline batteries for the mouse, all included. The mouse also has a power switch to conserve the battery.

Does the mouse use BlueTrack?

No. Microsoft publishes LED optical technology for this mouse. BlueTrack is a different Microsoft tracking technology used in other models and is generally more tolerant of difficult surfaces.

Is it Bluetooth?

No. It is a 2.4 GHz wireless set with a USB interface, rated at 10.06 metres in open areas and 4.57 metres in a typical office.

Does it work on a Mac?

Microsoft publishes Mac OS X v10.4 to v10.10.3, which will not cover a current Mac. For Windows, Microsoft publishes Windows 11 through to Windows 7.

Does Microsoft still publish a full specification for this set?

Yes. Microsoft publishes a complete specification table for the Wireless Desktop 900 on its surviving Microsoft Store listing, and every figure on this page is taken from it.