Overview
The OREI UKM-301C 3-Port USB-C HDMI KVM Switch occupies a specific and underserved corner of the market: it lets you connect three computers — one via USB-C and two via HDMI — to a single monitor, sharing one keyboard and mouse across all of them. It weighs next to nothing at 4 ounces and fits easily behind a desk or under a monitor stand. Available since late 2020, it still holds a spot in the top 700 KVM switches on Amazon, which points to consistent demand from a real audience. That audience is narrow but well-defined — people juggling a Mac or iPad alongside a Windows machine who want a low-cost solution without buying a full docking station.
Features & Benefits
At its core, this KVM switch delivers 4K at 60Hz output through HDMI 2.0, with HDCP 2.2 compliance and a video bandwidth ceiling of 18Gbps — solid numbers for the price tier. The USB-C Gen 3.1 input requires DisplayPort Alt Mode, which is worth stressing: if your device only uses USB-C for charging or data transfer, it will not work here. When Alt Mode is present, it handles Macs, iPads, Android tablets, and most modern notebooks cleanly. The four USB 2.0 ports let you share a keyboard, mouse, printer, or flash drive across all connected machines. Audio passthrough covers PCM and lossless formats up to 7.1 channels, though most buyers in this category are running stereo setups and will never push those limits. A dual-voltage adapter with an international converter is included.
Best For
This three-input switcher is genuinely well-matched to home office setups where someone runs a Mac or MacBook on one input, a Windows desktop or work laptop on another, and a tablet or secondary device on the third. If you switch between machines daily and have grown tired of unplugging cables, the shared USB hub alone — keyboard, mouse, and printer accessible from all three sources — makes the switch worthwhile. It is a poor fit for power users who need hotkey macros, advanced audio routing, or enterprise-level reliability. Students, remote workers, and creative freelancers looking for a clean desk on a tight budget are squarely in the target zone here.
User Feedback
The UKM-301C sits at 3.3 stars across 64 ratings, and the split is fairly telling. Buyers who came in with compatible hardware — USB-C devices with confirmed Alt Mode support — generally report smooth initial setup and appreciate the compact footprint. The frustration clusters around USB-C compatibility: several users discovered after purchase that their laptop or tablet simply does not output video over USB-C, a hardware limitation this switcher cannot resolve. Others flag occasional signal instability when switching sources, and a handful find the mandatory power adapter an unexpected annoyance for a device this small. Build quality is functional but unreservedly plastic — nobody is calling it robust. For straightforward, compatible setups, it handles the job without fuss.
Pros
- Supports 4K at 60Hz over HDMI 2.0, so image quality does not take a hit when you switch sources.
- The USB-C Gen 3.1 input with DisplayPort Alt Mode is a rare feature at this price point, covering Macs, iPads, and modern notebooks in one slot.
- Four USB 2.0 ports mean your keyboard, mouse, and printer stay connected and shared across all three computers without any re-plugging.
- Compact enough at 4 ounces to tuck behind a monitor or sit flat on a desk without adding clutter.
- Dual-voltage power adapter with an international converter included makes it usable for travelers or those working across different regions.
- Setup is genuinely straightforward for users with compatible hardware — no driver installation required.
- One-year manufacturer warranty provides a basic safety net for a budget-tier device.
- Audio passthrough covers lossless formats for users who do route sound through their monitor or AV setup.
Cons
- USB-C compatibility is conditional and non-obvious — if your device lacks DisplayPort Alt Mode, the port is completely useless.
- Several users report intermittent signal drops or display flickering when switching between sources, which is disruptive in daily use.
- Requires an external power adapter, which feels unnecessary for a small switcher and adds desk cable clutter.
- The plastic chassis feels noticeably entry-level; it does not inspire confidence if you handle it frequently or travel with it.
- No hotkey or button-press switching shortcut — source selection requires physical interaction with the unit.
- Only one HDMI output means this KVM switch is strictly single-monitor; dual-display setups are not supported.
- USB 2.0 ports limit peripheral throughput — fast external drives or USB 3.0 accessories will be bottlenecked.
- With a 3.3-star average from a modest review pool, the inconsistency across user experiences is harder to dismiss than with a more proven product.
Ratings
The scores below reflect an AI-driven analysis of verified buyer reviews for the OREI UKM-301C 3-Port USB-C HDMI KVM Switch, collected from global sources and filtered to remove incentivized, bot-generated, and duplicate submissions. Every category score is calibrated to reflect both where this switcher genuinely delivers and where real users have run into friction — nothing has been softened or inflated.
Video Output Quality
USB-C Compatibility
Peripheral Sharing
Switching Reliability
Setup Experience
Build Quality
Audio Passthrough
Value for Money
Compact Design
Multi-Device Flexibility
International Usability
Warranty and Support
Suitable for:
The OREI UKM-301C 3-Port USB-C HDMI KVM Switch is a practical pick for home office workers and students who regularly switch between two or three computers and want to stop wrestling with cables every time they change devices. It fits especially well when one of those devices is a Mac, MacBook, iPad Pro, or modern Android tablet with a USB-C port that explicitly supports DisplayPort Alt Mode — that combination is exactly what this switcher was designed around. Remote workers who juggle a personal desktop and a company-issued laptop on the same desk will find the shared USB hub genuinely useful for keeping a single keyboard, mouse, and printer accessible across all machines. Creative freelancers or developers who hop between a Mac and a Windows PC throughout the day, and who just need clean 4K output without a complex setup, will get reliable value here. If your use case is straightforward and your hardware checks the Alt Mode box, this three-input switcher delivers on its core promise without overcomplicating anything.
Not suitable for:
The OREI UKM-301C 3-Port USB-C HDMI KVM Switch is a poor match for anyone who needs hotkey switching, macro support, or the kind of rock-solid reliability that IT professionals or power users demand from a KVM in a production environment. Users whose USB-C device does not support DisplayPort Alt Mode — which is a significant portion of USB-C-equipped laptops and tablets — will hit a hard compatibility wall that no firmware update or workaround can fix. If you are running dual monitors, need audio switching between sources, or expect the switcher to manage high-frame-rate gaming output, look elsewhere. The plastic build quality is functional but not confidence-inspiring for setups that run continuously or involve frequent physical cable swaps. Anyone who has been burned by inconsistent display signals in the past, or who relies on uninterrupted switching in a professional context, should budget for a more robust solution rather than accepting the trade-offs that come with this price tier.
Specifications
- Brand: Manufactured and sold by OREI, a US-based electronics brand focused on video and display connectivity products.
- Model Number: The unit's official model identifier is UKM-301C.
- Video Inputs: Accepts one USB-C Gen 3.1 (DisplayPort Alt Mode) source and two HDMI sources simultaneously.
- Video Output: Provides one HDMI output port for connecting a single monitor or display.
- Max Resolution: Supports video output up to 4K at 60Hz via HDMI 2.0 with a bandwidth ceiling of 18Gbps.
- HDCP Compliance: Fully compliant with HDCP 2.2, enabling playback of protected content from streaming devices and Blu-ray sources.
- 3D Video: Supports 3D video passthrough for compatible source devices and displays.
- USB Ports: Includes four USB 2.0 ports for sharing peripherals such as a keyboard, mouse, printer, or flash drive across connected computers.
- Audio Support: Passes through PCM stereo, Dolby TrueHD, and DTS-HD Master Audio at up to 7.1 channels when supported by the source and display.
- USB-C Standard: The USB-C input operates on USB Gen 3.1 and requires the connected device to support DisplayPort Alternate Mode for video output.
- Power Supply: Powered by an included 5V/3A adapter with dual-voltage support and a US plug; an international plug adapter is also included in the box.
- Dimensions: The unit measures 6.5 x 2.5 x 0.75 inches, making it compact enough to sit flat on a desk or mount behind a monitor.
- Weight: Weighs 4 ounces, light enough to reposition easily or travel with when needed.
- Color: Available in black only.
- Package Contents: Box includes the UKM-301C switcher, a 5V/3A power adapter, an international plug adapter, and a user manual.
- Warranty: Backed by a one-year limited manufacturing warranty provided directly by OREI.
- Release Date: First made available for purchase on December 16, 2020, and remains in active production as of the current date.
- Compatible Devices: Works with PCs, Macs, laptops, Android devices, iPads, tablets, gaming consoles, and televisions, subject to port compatibility requirements.
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