The UGREEN CM390 USB-A Bluetooth 5.0 Adapter sells for KSh 1,200 at Mascom International, Old Mutual Building, First Floor Room 4, Kimathi Street, Nairobi CBD. Every unit is brand new and sealed. The The UGREEN CM390 slots into a free USB 2.0 or USB 3.0 port and gives a Windows desktop or laptop Bluetooth 5.0 with EDR and Low Energy support. It reaches 20 metres in open space and holds five Bluetooth devices at once. The dongle measures 53 x 24 x 13 mm, weighs roughly 30 grams, and runs on the 2.402GHz to 2.480GHz band. Stock is on the shelf now.
Desktop towers are still the backbone of work in Kenya, and almost none of them ship with Bluetooth built in. Accountants running QuickBooks on HP Pro Tower machines, data clerks in county offices on Dell OptiPlex units, cyber café operators along Moi Avenue, and university students working from hostel desks all hit the same wall. Their wireless headset, mouse or keyboard pairs with a phone but not with the computer they use for eight hours. The The UGREEN CM390 closes that gap for the price of a decent lunch, with no need to open the case or fit an internal card.
Unlike other electronics retailers in Kenya, Mascom International stocks the The UGREEN CM390 as verified UGREEN retail stock rather than loose grey-market dongles sold without documentation. Users consistently report that the adapter pairs a headset within seconds of plugging in on Windows 11, then reconnects automatically at every boot. At Mascom International, we're witnessing steady demand from small offices replacing wired headsets after moving calls to Zoom, Google Meet and Microsoft Teams. Walk into our Kimathi Street shop to test the The UGREEN CM390 against your own headset, or order for pay-on-arrival delivery anywhere in Kenya.
Common Questions About the The UGREEN CM390 USB-A Bluetooth 5.0 Adapter
Will the The UGREEN CM390 work with my Windows desktop or laptop?
Yes, on Windows 11, 10, 8.1 and 7, in both 32-bit and 64-bit builds. The adapter needs one free USB-A port, an Intel or AMD processor above 1GHz, and at least 1GB of RAM. Almost every machine sold in Kenya since 2012 clears that bar comfortably. On Windows 11, 10 and 8.1 the dongle is recognised the moment it is plugged in. Windows 7 machines need the driver installed first.
Does it work on a Mac, a Linux machine, or a television?
No. UGREEN states plainly that the CM390 is built for Windows and does not work with macOS, Linux, car head units or televisions.If you need Bluetooth on a MacBook or a Linux workstation, ask our Kimathi Street counter staff about alternative chipsets before buying.
Can I pair a PS5 or Nintendo Switch controller through it?
The controller can pair with your Windows PC through the CM390, but the adapter will not add Bluetooth to the console itself. UGREEN notes that the dongle is not compatible with PS5, PS4 or Nintendo Switch hardware.For PC gaming with a DualSense or Xbox pad, the low-latency EDR link handles input well.
Do I have to install drivers before it works?
On Windows 11, 10 and 8.1, no. Plug the CM390 into a USB port and Windows loads its own Realtek RTL8761BU driver, usually within thirty seconds. Windows 7 users install the bundled driver first, either from the included disc or by searching model number 80889 on UGREEN's download page. If your motherboard already has old Bluetooth hardware, disable it in Device Manager so the two radios do not fight for the same profile.
How far does the 20-metre range reach in a real Nairobi office?
Twenty metres is the open-line figure, measured with nothing between the dongle and the device. Inside a partitioned CBD office, expect roughly 8 to 12 metres through cubicle walls, and less through concrete. That is still enough to keep a headset connected while you walk to the printer or step into a side meeting room. Bluetooth 5.0 covers about four times the ground that Bluetooth 4.0 managed at the same power draw.
How many devices can stay connected at the same time?
Five. You can run a Bluetooth headset, a mouse, a keyboard, a speaker and a phone file transfer together without the connections interfering with each other. In practice most Kenyan buyers use three: headset for calls, mouse and keyboard for the desk. Audio quality holds steady when input devices are also connected, because the mouse and keyboard use low-bandwidth HID traffic while the headset takes the A2DP audio channel.
Will my Bluetooth headset work for Zoom, Teams and WhatsApp calls?
Yes. The CM390 carries HFP and HSP profiles for hands-free voice, so Windows exposes both a headset microphone and a headset speaker to Zoom, Google Meet, Microsoft Teams and WhatsApp Desktop. Select the adapter as your audio input and output inside each app's sound settings. A2DP handles music and video playback in higher fidelity. AVRCP lets the buttons on your headset pause, skip and adjust volume directly.
Why pay KSh 1,200 instead of buying a cheap unbranded dongle?
Cheap dongles usually ship with no chipset listed, no driver support and no warranty path. The CM390 uses a documented Realtek RTL8761BU chipset that Windows already recognises, and UGREEN publishes drivers for it by model number. Mascom International adds a 6-month warranty handled at our Nairobi CBD desk. Buyers who started with KSh 300 dongles that dropped audio every few minutes tell us the difference shows up within a day.
What can I connect to it beyond headsets and mice?
Bluetooth speakers, wireless printers, phones, tablets, fitness bands and game controllers all pair through the CM390. File transfer between a phone and a PC works over the FTP and PAN profiles, useful when a cable is missing or a hostel Wi-Fi network blocks local sharing. Older Bluetooth gear pairs too, since the adapter stays backward compatible with the 4.2, 4.0, 3.0, 2.1 and 2.0 standards.
Technical Specifications
Wireless Radio and Data Handling
- Bluetooth 5.0 with EDR and Low Energy support, covering audio streaming, input devices and background file transfer
- Realtek RTL8761BU chipset drives the radio, a documented part with published Windows drivers rather than an anonymous board
- Data rate reaches 2 to 3 Mbit per second under EDR, enough for stereo audio plus mouse and keyboard traffic together
- Operating band spans 2.402GHz to 2.480GHz, the standard 2.4GHz allocation used by Bluetooth hardware worldwide
- Roughly twice the throughput and four times the coverage of Bluetooth 4.0 hardware at similar power consumption
- Low Energy mode cuts drain on connected accessories, so wireless mice and bands last longer between charges
- Barrier-free transmission range rated at 20 metres, measured line-of-sight with no walls between adapter and device
Device Compatibility and Operating System Support
- Runs on Windows 11, Windows 10, Windows 8.1 and Windows 7, in both 32-bit and 64-bit editions
- Minimum host requirements are an Intel or AMD processor above 1GHz plus 1GB of RAM
- Fits any free USB 2.0 or USB 3.0 Type-A port on a desktop tower, laptop, all-in-one or docking station
- Does not work with macOS, Linux, car audio head units or televisions, per UGREEN's stated compatibility list
- Cannot add Bluetooth to PS5, PS4 or Nintendo Switch consoles, though PC-side controller pairing works normally
- Pairs with headsets, speakers, printers, keyboards, mice, phones, tablets and controllers already carrying Bluetooth
- Backward compatible with Bluetooth 4.2, 4.0, 3.0, 2.1 and 2.0 accessories, covering older gear still in daily use
Supported Profiles and Practical Uses
- A2DP carries stereo audio to headphones and speakers, the profile that matters for music and video playback
- AVRCP passes track controls, so play, pause, skip and volume buttons on your headset reach Windows directly
- HFP and HSP handle two-way voice, making the microphone on a wireless headset available to calling apps
- HID covers keyboards, mice and controllers, the low-bandwidth channel that keeps pointer movement responsive
- PAN and FTP allow phone-to-PC file transfer and network sharing without a cable or shared Wi-Fi
- GAVDP, DID and IOPT round out the profile list, covering device identification and object push between paired hardware
- Five devices connect at once with no cross-interference, letting one dongle serve a whole desk setup
Build Quality and Physical Design
- ABS plastic housing measuring 53 x 24 x 13 mm, small enough to leave permanently in a rear USB port
- Weighs about 30 grams, so it adds no meaningful load to a laptop carried in a daily commute bag
- Slim profile clears adjacent USB ports on most towers, avoiding the blocked-neighbour problem of wider dongles
- LED indicator shows power and pairing status, useful when troubleshooting a connection that has dropped
- Sealed plastic body resists the dust common in Nairobi offices and upcountry premises during dry season
- Available in black only, matching standard desktop and laptop finishes without drawing attention
- No moving parts and no external antenna, which removes the usual breakage points on budget adapters
Setup, Drivers and Daily Use
- Plug-and-play on Windows 11, 10 and 8.1, with the driver loading automatically inside about thirty seconds
- Windows 7 requires manual driver installation from the bundled disc or from UGREEN's site under model 80889
- Built-in motherboard Bluetooth should be disabled in Device Manager to stop the two radios competing for devices
- Paired devices reconnect automatically at every startup, so daily use needs no repeated pairing steps
- Draws power from the USB port itself, with no separate adapter, battery or wall socket needed
- Restarting the PC after driver installation completes the setup and clears the common frozen-pairing symptom
- Works from a powered USB hub when all rear ports on the tower are already occupied
Package Contents
- The UGREEN CM390 USB-A Bluetooth 5.0 Adapter in black
- Driver disc for Windows 7 installation
- User manual and quick start guide
- Mascom International receipt and 6-month warranty card
Note:Drivers remain downloadable from UGREEN's site under model number 80889 at any time.
Warranty
The The UGREEN CM390 carries a 6-month Mascom International warranty on manufacturing defects under normal use. Claims are handled directly at our Nairobi CBD service desk, with no courier return to a distant centre. Physical damage, liquid exposure and damage from forcing the dongle into a worn USB port fall outside coverage.
Where to Buy the The UGREEN CM390 in Kenya
The The UGREEN CM390 is in stock now at Mascom International, Old Mutual Building, First Floor Room 4, Kimathi Street, Nairobi CBD. Walk in Monday to Saturday between 9:00 AM and 7:00 PM to plug the adapter into a test machine and pair your own headset or mouse before you pay. Available in black.
Four ways to order:
- Phone/WhatsApp: +254 708 852 521
- Email: info@mascomintl.com
- Website: www.mascomintl.com
- In person at our Kimathi Street counter
Mascom International ships the The UGREEN CM390 to all 47 Kenyan counties with pay-on-arrival delivery, so you inspect the sealed packet and pay only when it reaches you. Nairobi and its environs receive same-day delivery. All other major cities and towns receive the adapter within 1 business day. Mandera, Wajir, Marsabit, Lamu, Tana River, and Turkana receive delivery within 2-3 business days.
Every purchase is backed by the 6-month warranty above and by setup help from our team if Windows does not pick up the dongle on first plug-in. Buyers across Kenya rely on Mascom International for accurate specifications, current Kenyan pricing, and after-sales support handled by people you can actually visit.
