UGREEN US230 PCI-E Expansion Card is now in stock at Mascom International for KSh 3,500, adding four USB 3.0 ports and one 10/100/1000 Mbps RJ45 network port to any desktop with a free PCI Express slot. The UGREEN US230 arrives brand new and sealed, fitting PCI Express x1, x4, x8, and x16 sockets on standard ATX and micro-ATX motherboards. Each USB 3.0 port moves data at up to 5Gbps, while the network port runs full duplex at 1000 Mbps in each direction. Collect the UGREEN US230 at Mascom International, Old Mutual Building, First Floor Room 4, Kimathi Street, Nairobi CBD.
Kenya's cyber café operators, county government IT officers, accounting firms, CCTV installers, and university lab technicians keep older towers working long past their port budgets. A desktop bought eight years ago often carries only USB 2.0 sockets and a dead onboard network chip, so staff unplug the printer every time a flash disk is needed. The UGREEN US230 answers both shortages from one slot. Machines running iTax filings, Sage payroll, or NVR recording software regain wired internet plus four working peripheral sockets without a motherboard swap or a second computer purchase.
Unlike other electronics retailers in Kenya who stock unbranded expansion boards with no driver support, Mascom International supplies the UGREEN US230 with its SATA power lead and driver disc intact. Users consistently report that the SATA 15-pin feed holds external hard drives mounted through long file copies, where slot-powered cards drop the connection. At KSh 3,500, the UGREEN US230 costs less than a workshop repair on a failed onboard network chip, and far less than a replacement tower. Walk into our Kimathi Street store Monday through Saturday, 9:00 AM to 7:00 PM, or order for countrywide pay-on-arrival delivery.
Common Questions About the UGREEN US230
What exactly does the UGREEN US230 add to my desktop?
It adds four USB 3.0 Type-A sockets and one RJ45 Ethernet port to the back panel of your tower. The USB sockets handle flash disks, external drives, printers, webcams, and keyboards at up to 5Gbps each. The Ethernet port auto-negotiates 10, 100, or 1000 Mbps depending on your router or switch. Both sets of ports work at the same time from the single PCI Express slot the card occupies.
Will this card fit my motherboard?
The card uses a PCI Express x1 edge connector, which seats in x1, x4, x8, and x16 slots on almost every ATX and micro-ATX board sold since 2006. It does not fit legacy PCI slots, which are longer, white or cream coloured, and now rare. Check that one PCI Express slot sits free below your graphics card, with roughly 12 cm of clearance behind the slot for the card body.
Does the card need power from the PSU?
Yes. A 15-pin SATA power connector from your power supply must plug into the card before the USB ports will run at full current. This matters when you connect 2.5-inch external hard drives or charge phones from the ports, because those loads exceed what a PCI Express slot alone provides. Most Kenyan pre-built towers have a spare SATA power lead already tucked behind the drive cage.
How fast are the USB 3.0 ports in real use?
USB 3.0 carries a theoretical 5Gbps per port, roughly ten times USB 2.0. In practice, a 1GB folder copies to a decent flash disk in a few seconds rather than a minute. Real speed depends on the drive you plug in, not the card. Mechanical external hard drives usually cap around 100-140 MB/s, while an external SSD gets closer to the port ceiling.
Is wired Ethernet really better than WiFi on Kenyan home fibre?
For fixed desktops, yes. A cable to your Safaricom Home Fibre, Zuku, or Faiba router removes the packet loss and latency swings that come from a shared 2.4GHz channel in a crowded apartment block. Video calls hold steady, large downloads finish without stalling, and NVR footage writes without dropped frames. The gigabit port also moves files between office machines far faster than most household WiFi links manage.
Which operating systems does this card support?
Windows 11, 10, 8.1, 8, 7, Vista, and XP are supported, along with Windows Server 2003 through 2008. UGREEN does not list Linux or macOS support for this card, so plan around Windows machines. Windows 10 and 11 usually detect both controllers and install drivers automatically within a minute of first boot. Older Windows releases need the bundled driver disc or the download from UGREEN's support page.
Who should buy the UGREEN US230?
Cyber café and printing bureau operators running several machines, county and school IT staff maintaining aging labs, accountants filing on iTax from desktops with dead network chips, and CCTV technicians building recording workstations. Home users with a tower that has run out of front-panel sockets benefit equally. Anyone who currently unplugs one device to connect another is losing time this card recovers for KSh 3,500.
Can I install it myself or do I need a technician?
Most people manage it alone in under ten minutes. Shut down, unplug the mains cable, open the side panel, remove a rear slot cover, press the card into a free PCI Express slot until it clicks, screw the bracket down, attach the SATA power lead, and close up. If you would rather not open the case, our Kimathi Street counter fits the card while you wait at no extra charge.
Is KSh 3,500 fair against buying two separate cards?
A standalone gigabit network card sells for roughly KSh 2,000 in Nairobi, and a four-port USB 3.0 card for around KSh 2,500 to KSh 3,000. Buying both costs more and occupies two PCI Express slots, which small micro-ATX boards rarely have spare. The UGREEN US230 covers both jobs from one slot for KSh 3,500, leaving your remaining slots open for a WiFi card or capture card.
Technical Specifications
Core Function and Port Layout
- Converts one free PCI Express slot into four USB 3.0 Type-A sockets and one RJ45 network port.
- All four USB sockets and the network port operate at the same time without manual switching between them.
- Rear bracket exposes every port outside the case, so cables route normally to the back of the tower.
- Card measures roughly 12 cm long, clearing most micro-ATX cases without touching drive cages or cooling fans.
- Single-board design means one driver installation covers both the network chip and the USB host controller.
Gigabit Ethernet Standards and Throughput
- RJ45 port auto-negotiates 10, 100, or 1000 Mbps to match whatever router or switch it meets.
- Full duplex operation carries 1000 Mbps in each direction, up to ten times faster than 10/100 Ethernet.
- Complies with IEEE 802.3, IEEE 802.3u, and IEEE 802.3ab, covering every common copper Ethernet standard.
- Supports 802.1Q VLAN tagging, letting office networks separate accounts, CCTV, and guest traffic on one cable run.
- Flow control keeps transfers stable when a fast desktop talks to a slower switch or older office server.
- Link and activity LEDs on the port confirm at a glance whether the cable and switch are live.
USB 3.0 Bandwidth and Protocol Support
- Each USB 3.0 port carries up to 5Gbps, moving a 1GB folder in seconds rather than a minute.
- Backward compatible with USB 2.0 and USB 1.1 devices, so old printers and keyboards still work normally.
- UASP protocol support raises read and write speeds on external SSDs compared with plain USB 3.0 transfers.
- Ports supply standard USB 3.0 current for flash disks, card readers, webcams, keyboards, mice, and phone charging.
- Independent voltage regulation guards each socket against over-current damage when several drives run at once.
Motherboard Slot Compatibility
- Uses a short PCI Express x1 edge connector that seats in x1, x4, x8, and x16 slots.
- Works with Intel and AMD desktop boards from major brands including HP, Dell, Lenovo, ASUS, and Gigabyte.
- Not compatible with legacy PCI slots, which are physically longer and found only on very old machines.
- Needs about 12 cm of clearance behind the slot, which suits mid-tower and most micro-ATX chassis.
- Leaves your remaining PCI Express slots free for graphics, WiFi, capture, or storage expansion cards.
Power Supply and Installation Requirements
- Requires one spare 15-pin SATA power connector from the tower's power supply for full port current.
- SATA feed is steadier than slot-only power, holding external hard drives connected during long backup copies.
- Connect the SATA lead before switching the machine on; the ports run under-powered without it.
- Never feed 12V through the wrong lead — use the standard SATA connector supplied with your power supply.
- Whole installation takes under ten minutes with a single Phillips screwdriver and no BIOS changes needed.
Operating System Support and Driver Setup
- Windows 11 and Windows 10 detect the card and install both drivers automatically on first boot.
- Windows 8.1, 8, 7, Vista, and XP install from the bundled driver disc or UGREEN's download page.
- Windows Server 2003 through 2008 is supported for small office file and print servers.
- Linux and macOS are not listed as supported by UGREEN, so plan installations around Windows machines.
- Device Manager shows the network controller and USB host controller separately once installation finishes correctly.
Build, Dimensions, and Daily Durability
- Gold-plated PCI Express contacts resist the corrosion that Mombasa and Kisumu humidity causes on bare connectors.
- Metal rear bracket screws to the chassis, holding ports rigid when cables are pulled or knocked.
- Board weighs roughly 120 grams, adding no meaningful load to the slot or motherboard tray.
- Passive cooling with no fan means nothing to clog with dust in Industrial Area or Nakuru workshops.
- Solid-state construction with no moving parts suits machines that stay powered on for CCTV recording duty.
Package Contents
Every UGREEN US230 from Mascom International arrives sealed with the expansion card fitted to its standard full-height metal bracket, a 15-pin SATA power cable for connection to your tower's power supply, a driver disc covering older Windows releases, and the UGREEN user guide. Open the box at our Kimathi Street counter or on delivery and check each item before you pay.
Warranty
The UGREEN US230 carries a 6-month Mascom International warranty on manufacturing defects, covering the network controller, the USB host controller, and the board itself. Physical damage from incorrect installation or connecting the wrong power lead falls outside cover. Claims are handled directly at our Nairobi CBD service desk, with no third-party workshop in between and no shipping fee to you.
Where to Buy the UGREEN US230 in Kenya
UGREEN US230 is available now at Mascom International, Old Mutual Building, First Floor Room 4, Kimathi Street, Nairobi CBD. Visit Monday through Saturday, 9:00 AM to 7:00 PM to see the card, check it against your tower's slot layout, and have it fitted at the counter. The card ships in one hardware version, so there are no colour or capacity choices to weigh up.
Order through any of the following:
- Phone/WhatsApp: +254 708 852 521
- Email: info@mascomintl.com
- Website: www.mascomintl.com
Mascom International ships the UGREEN US230 across all 47 Kenyan counties with pay-on-arrival delivery you pay only when the card reaches you. Nairobi and its environs receive same-day delivery. Mombasa, Kisumu, Nakuru, Eldoret, and all other major cities and towns receive next-business-day delivery. Mandera, Wajir, Marsabit, Lamu, Tana River, and Turkana receive delivery within 2-3 business days.
Every unit comes with the 6-month Mascom warranty stated above, coordinated from our Nairobi CBD service desk.
Buyers across Kenya rely on Mascom International for accurate specifications, current Kenyan pricing, and installation help that continues after the sale on every expansion card we stock.
