Reviewed by
Jarrett Dottin
Licensed Occupational Therapist dedicated to helping others live their best lives. Certified lymphedema therapist and amazon affiliate who has tested over 1,000 different products. http://About%20JD →
As an Amazon Associate I earn from qualifying purchases. Some links on this site are affiliate links, if you buy though them I may make a commission at no extra cost to you.
Quick Verdict
One HDMI cable in, four displays out, all mirroring the same 4K image at 60Hz. The OREI 1×4 is a plug-and-play HDMI splitter in a metal shell built to push the same signal to every screen at once, not to run four different pictures. If you need mirrored displays across a room, this is the boring, dependable kind of box that just does it.
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| Model | OREI UHDS-104 |
|---|---|
| Configuration | 1 in, 4 out (mirror only) |
| Max resolution | 4K @ 60Hz |
| Bandwidth | 18Gbps, HDMI 2.0, HDCP 2.0 |
| Cable limit | Up to 30 ft per run |
| Warranty | 12-month support, lifetime OREI tech support |
One HDMI Input, Four 4K Screens Doing the Same Thing
The moment I unboxed the OREI was the moment I stopped thinking about adapters, one HDMI in, four clean outputs, no mess. The OREI 1×4 HDMI splitter takes a single HDMI source and mirrors it out to four displays at once, all at 4K 60Hz. You can check the current price and availability here. It’s a small metal box that solves one specific problem well: getting one signal onto multiple screens without the picture falling apart.
The key word is mirror. This isn’t the box that turns one output into four different desktops. Every screen shows the same thing. That’s the whole point, and it’s worth being clear about before you buy.
What’s Actually Inside the Metal Box
18Gbps HDMI 2.0 bandwidth is the spec that separates this from the cheaper splitters flooding Amazon. Budget units typically cap at 10.2Gbps, enough for 4K at 30Hz, not 60Hz, so motion in fast-moving content turns soft and stuttery. If you’ve ever plugged in a bargain splitter and watched a smooth 60Hz feed turn into a slideshow, the bandwidth ceiling is why. This one doesn’t have that problem.
The enclosure is heavy-duty metal, which OREI leans on for heat dissipation. Splitters run warm because they’re regenerating a signal, and a metal shell handles that better than plastic. It ships with a dual-voltage power adapter, an international adapter, and a user guide. HDCP 2.0 is on board, so protected content from streaming boxes and consoles passes through instead of throwing a black screen.
| Spec | Detail |
|---|---|
| Outputs | 4 (mirrored) |
| Resolution | Up to 4K @ 60Hz |
| Bandwidth | 18Gbps |
| Standards | HDMI 2.0, HDCP 2.0, EDID management |
| Audio formats | LPCM, Dolby AC3, DTS 7.1, Dolby TrueHD, DTS-HD MA |
| Cable limit | Up to 30 ft per output |
Plug It In and It Just Works
Setup is four steps: source into the input, four HDMI cables into the outputs, power adapter into the wall, done. There’s no menu, no pairing, no firmware screen to navigate. The part that earns its keep invisibly is the built-in EDID management, it’s what stops the splitter from broadcasting at whatever resolution the weakest screen demands and forcing every other display to follow it down.
The 30-foot cable guidance is the detail people skip. OREI rates this for HDMI runs up to 30 ft per output for stable signal. Push past that with cheap passive cable and 4K 60Hz is the first thing that drops out. Stay inside 30 ft and it holds.
The Mirror-Only Catch Worth Knowing
This unit mirrors, it doesn’t extend. That’s the one thing I’d want a buyer to be dead sure about before ordering. If you’re hoping to spread a Windows desktop across four monitors and drag windows between them, this isn’t that device, and no setting will make it that device. All four outputs show an identical image, locked together.
For sports bars, retail walls, classrooms, and trade-show displays, mirroring is exactly right. For a multi-monitor productivity rig, it’s the wrong tool. The listing even flags it in plain text, and it deserves the emphasis because it’s the number one reason people return a splitter like this.
Get it now
OREI 1×4 4K HDMI Splitter
Get the best price on Amazon →As an Amazon Associate I earn from qualifying purchases. Some links on this site are affiliate links, if you buy though them I may make a commission at no extra cost to you.
Who This HDMI Splitter Fits Best
The sweet spot is any fixed installation where mirroring is the whole point: a bar splitting a single cable box to four TVs without four separate subscriptions, a classroom pushing one laptop feed to displays at the back of the room, a retail wall looping a single video source. Home theater users get a bonus, the splitter passes DTS 7.1, Dolby TrueHD, and DTS-HD Master Audio intact, so running a PS5 through it to a second room doesn’t strip the audio down to stereo.
If your dream is four independent screens, look at a matrix switch or a multi-output graphics card instead. This is a distribution tool, not an extender.
Advice Before You Order
Buy quality ultra HD HDMI cables rated for 18Gbps and keep every run under 30 ft. A splitter can only pass what the cable delivers, and a $5 passive cable is where 4K 60Hz setups quietly die. If your farthest screen is beyond 30 ft, plan on an active or fiber HDMI cable for that run. And confirm one more time: you want the same picture on every screen. If yes, this checks the box.
Pros
- Mirrors one source to four displays at a true 4K 60Hz
- 18Gbps HDMI 2.0 bandwidth keeps HDR and 60Hz intact
- Metal enclosure handles the heat a splitter generates
- Plug-and-play with no drivers, software, or account
- Wide audio format support for home theater use
Cons
- Mirror only, so it can’t extend a desktop across screens
- Signal stability depends on staying within the 30 ft cable limit
- Needs its own power adapter and outlet, not USB powered
Frequently Asked Questions
Can this HDMI splitter show different content on each screen?
No. It mirrors one input across all four outputs, so every screen shows the exact same image. For separate content per display you need a matrix switch or a multi-output source, not this splitter.
Does it need an app, account, or subscription?
No. It’s fully plug and play with no drivers, no app, and no account. You connect the cables, plug in the included power adapter, and it starts distributing signal immediately.
Will it work with a PS5, Xbox, or Apple TV?
Yes. HDCP 2.0 support means protected content from consoles and streaming boxes passes through instead of showing a black screen. Just remember all connected TVs display the same picture.
How long can the HDMI cables be?
OREI rates it for cables up to 30 ft per output for stable 4K performance. Beyond that you’ll want active or fiber HDMI cable, since long passive runs are usually where 4K 60Hz drops out.
Does it need to be plugged into power?
Yes. It includes a dual-voltage power adapter and an international adapter, so it draws from a wall outlet rather than USB. Splitters that push four 4K outputs need the extra power to regenerate the signal.
Will it downgrade my resolution if one TV isn’t 4K?
Because it uses EDID management, the splitter can settle on a resolution all connected displays support. If you mix a 4K TV with a 1080p one, the shared output may drop to what the lowest screen handles, which is standard behavior for mirroring splitters.
What’s the warranty and support like?
It comes with 12-month manufacturer support plus lifetime OREI technical support. That’s a stronger support commitment than most no-name splitters, which usually offer nothing after purchase.
Is this good for a productivity multi-monitor setup?
No, not for extended desktops. It only mirrors, so it’s built for showing one feed on many screens like bars, classrooms, and retail. For dragging windows across separate monitors, use a graphics card with multiple outputs instead.
Get it now
OREI 1×4 4K HDMI Splitter
Get the best price on Amazon →As an Amazon Associate I earn from qualifying purchases. Some links on this site are affiliate links, if you buy though them I may make a commission at no extra cost to you.
About the reviewer
Jarrett Dottin
Licensed Occupational Therapist dedicated to helping others live their best lives. Certified lymphedema therapist and amazon affiliate who has tested over 1,000 different products.
