How big is the USB dongle? and is there a bluetooth version of this keyboard?

The dongle is about one inch long with about the normal size for width and height of a regular USB stick. It has no Bluetooth, but who needs it. The main reason I got this set is the AES wireless encryption. At least you know that hackers can't use a wireless dongle sniffer to track your keystrokes with it. With Bluetooth keyboards they can sniff everything (usernames passwords, banking info, emails, etc...), that is bad!!!

I need replacement usb tab for ms5050 keyboard..lost it. ms part #c938881-01

Each USB tab is married to that particular key board and mouse it came with, once lost or bad it can’t be replaced. Sorry but your keyboard is unusable now.

How is this different from PP4-00001?

They are very similar, just a few cosmetic differences.

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Microsoft Wireless Comfort Desktop 5050 with AES - Keyboard and Mouse

Product ID: 5037143

Details

Brand
Microsoft
Color
Black
Compatible Devices
Personal
Connectivity Technology
Wireless
Special Feature
Ergonomic

📶30 ft wireless range

⌨️104-key ergonomic layout

🖱️Ambidextrous optical mouse

Description

⌨️ Elevate your workspace comfort and style—wireless freedom never looked this good!

SLEEK MODERN AESTHETIC - Glossy and textured black surfaces elevate your desk style with subtle sophistication.
BUILT IN PALM REST SUPPORT - Integrated palm rest promotes healthier wrist posture for all-day comfort.
WIRELESS FREEDOM UP TO 30 FEET - Cut the cord and enjoy clutter-free productivity anywhere in your workspace.
ERGONOMIST APPROVED COMFORT CURVE - Designed to align wrists and hands naturally, reducing strain during long work sessions.
TRUSTED MICROSOFT QUALITY BATTERY LIFE - Reliable performance backed by a brand you trust, with long-lasting battery power included.

The Microsoft Wireless Comfort Desktop 5050 combines an ergonomist-approved curved keyboard with a built-in palm rest and an ambidextrous optical mouse, delivering wireless connectivity up to 30 feet. Designed for Windows PCs, this sleek black set enhances comfort and productivity while eliminating cable clutter, backed by Microsoft’s trusted quality and long battery life.

Specifications

ASIN	B007CJT12A
Antenna Location	Office
Best Sellers Rank	#891 in Computer Keyboard & Mouse Combos
Brand	Microsoft
Color	Black
Compatible Devices	Personal Computer
Compatible Operating System Family	Windows
Connectivity Technology	Wireless
Customer Reviews	4.5 4.5 out of 5 stars (437)
Global Trade Identification Number	00885370993868
Hand Orientation	Ambidextrous
Keyboard Description	Indoor
Keyboard Layout	QWERTY
Manufacturer	Microsoft
Mfr Part Number	PP4-00002
Minimum Required Operating System Version	Windows 10
Model Number	PP4-00002
Movement Detection	Optical
Number of Batteries	4 AA batteries required. (included)
Number of Keys	104
Number of Packs	1
Operating System	Microsoft
Other Special Features of the Product	Ergonomic
Power Source	Battery Powered
UPC	885227236858 885370993868
Unit Count	1 Count
Warranty Description	Limited Warranty

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