Is this receiver compatible with 1) logitech k850 keyboard and 2) logitech m270 mouse? thanks!

These should be compatible with any Logitech wireless perif that doesn’t use the bolt dongle.

do these work with the M575 trackball mouse?

No, the trackball USB is just a simple USB receiver Bertrand

Does it work to connect a k545

Yes if it has the unifying asterisk symbol

Does it work with mk520 keyboard?

Yes! "Increase productivity with this Logitech MK520 wireless keyboard and mouse combo. A Unifying receiver connects the two devices to your laptop wirelessly for a clutter-free workstation, while the long battery life keeps each device working smoothly...."

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Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

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USB Unifying Receiver - 2 Pack

Product ID: 101170614

Details

Brand
Logitech
Color
Black
Compatible Devices
Desktop
Data Link Protocol
USB
Data Transfer Rate
3 Megabits Per
Hardware Interface
USB

⚡3 Mbps ultra-reliable data rate

🔗Seamless multi-device pairing

🖥️Compact USB plug & play

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C$2779

Duties & taxes included

In stock

Sold byAmazon NicaraguaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🔗 Elevate your productivity—one receiver, endless possibilities!

DUAL PACK ADVANTAGE - Two receivers in one pack to keep your home and office synced effortlessly.
UNIFY YOUR WORKSPACE - Connect up to 6 Logitech devices with one receiver for a clutter-free desk.
ULTRA LIGHT COMPACT - Tiny design fits discreetly into any USB port without blocking neighbors.
PLUG PLAY SIMPLICITY - Instant setup with universal USB compatibility—no drivers needed.
TRUSTED LOGITECH QUALITY - Backed by a 4.4-star rating and industry-leading reliability.

The Logitech USB Unifying Receiver 2 Pack offers seamless wireless connectivity for up to six compatible Logitech devices per receiver. With a reliable 3 Mbps data transfer rate and compact USB design, it ensures clutter-free, plug-and-play convenience for professional desktops. Trusted by thousands, this dual pack keeps your workspace efficient and connected.

Specifications

ASIN	B07MVP819S
Best Sellers Rank	#49 in Computer Network Adapters
Brand	Logitech
Color	Black
Compatible Devices	Desktop
Customer Reviews	4.4 4.4 out of 5 stars (1,865)
Data Link Protocol	USB
Data Transfer Rate	3 Megabits Per Second
Hardware Interface	USB
Item Dimensions L x W x H	6"L x 8"W x 2"H
Item Weight	0.01 Ounces
Manufacturer	Logi
UPC	798506862573
Unit Count	2.0 Count

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TrustScore 4.5 | 7,300+ reviews

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