An Xbox Series X has one HDMI 2.1 output, so two monitors need an HDMI splitter that mirrors the same 4K image to both screens.
Dual monitors on a Series X come down to one port: the console sends game, audio, and dashboard down a single HDMI 2.1 cable, so a second screen appears only when something splits that signal — a splitter, a shared resolution both displays can hold, and a separate check on HDR and 120 Hz. Both screens show the same picture: a mirror, never an extended desktop. A splitter is cheap and works in minutes; a switch does not.
How Do You Split One Xbox Signal To Two Monitors?
Feed the console’s HDMI cable into an HDMI splitter (sold as a distribution amplifier), then run one cable from each splitter output to a monitor. Both screens show the identical image at the identical resolution.
Xbox lists one HDMI 2.1 port, true 4K, up to 120 fps, Auto Low Latency Mode, HDMI Variable Refresh Rate, and AMD FreeSync on the Series X. The official Xbox Series X specifications describe a single output and no two-display mode.
- Plug the console cable into the splitter’s input, marked In or Source.
- Run an output cable to each monitor and set both monitors to that HDMI input.
- Open Settings > General > TV & display options and pick a resolution and refresh rate both screens support.
- Fall back to 1080p at 60 Hz if the image flickers, then climb. 4K at 120 Hz needs HDMI 2.1 at every link — splitter, cables, displays.
- Power-cycle the chain after a resolution change so the splitter re-handshakes.
If one screen stays black, check the monitor’s input setting or a half-seated output cable, not the console.
What The Splitter Cannot Do
A splitter duplicates one signal; it cannot create a second output. Two games, two player views, a stretched ultrawide canvas, and any rise in resolution or frame rate are off the table.
A unit built to HDMI 2.0 drags the chain down to 4K at 60 Hz, and HDR, VRR, ALLM, and FreeSync each must pass through on their own — test them one at a time. The other common miss is buying an HDMI switch, which selects between sources, feeds one screen at a time, and duplicates nothing.
| Method | What Screen Two Shows | Catch |
|---|---|---|
| HDMI splitter (distribution amplifier) | Same mirrored image at the same resolution | Needs HDMI 2.1 throughout for 4K at 120 Hz |
| HDMI switch | One screen at a time | Selects sources; duplicates nothing |
| Capture card into a PC | A delayed copy inside capture software | Extra cost and lag; built for streaming |
| Xbox Remote Play on a PC | A streamed copy of your own game | 10 Mbps minimum; some lag |
| Remote Play on phone or tablet | The same stream, smaller screen | Not a local HDMI output |
| Xbox Cloud Gaming on a laptop | A completely different game | Supported region and Game Pass cloud access |
Splitter quality decides whether 4K at 120 Hz survives, so buy one rated for the full feature set — our roundup of tested splitters for an Xbox dual monitor setup covers the units that hold that signal.
Can A Second Screen Come From Remote Play?
Yes — Xbox Remote Play streams a game running on the Series X to a PC, phone, tablet, or TV beside the wired monitor. It is a stream, not a second local output.
Setup needs remote features enabled on the console, a Microsoft account with an Xbox profile, a compatible controller, and at least 10 Mbps, with 5 GHz Wi-Fi or mobile data recommended. The app runs on Android 6.0+, iOS 15.1+, and Windows 10 or 11 version 22H2+. Expect latency and compression, so slower games fare better than shooters.
Xbox Cloud Gaming runs something separate on screen two — a different game, in supported regions, on an eligible Game Pass plan.
Two live screens of the same match: splitter in, two cables out, shared resolution locked, features tested one at a time. Two people wanting two different games: Remote Play or Cloud Gaming, no second console required.
Common Questions
Will A Splitter Lower The Frame Rate?
Not by itself, but it can limit the chain. If the splitter or either monitor tops out at HDMI 2.0, the console settles into a matched mode such as 4K at 60 Hz. Both displays always run the same resolution and refresh rate, so the weakest link sets the ceiling.
Do Both Monitors Need To Be The Same Model?
No, though mismatched panels force compromises. The console drives both through one shared output, so the pair runs at the lowest resolution and refresh rate they share. A 4K 120 Hz screen paired with an older 1080p 60 Hz panel gives 1080p at 60 Hz on both. Matching capabilities matters more than matching brands.
Does A Second Screen Add Input Lag?
Mirroring through a splitter adds almost nothing noticeable, since the signal is copied rather than processed. Remote Play is different: the game is encoded, sent over the network, and decoded, producing lag that turn-based and casual games tolerate and competitive shooters do not. Wired Ethernet or 5 GHz Wi-Fi narrows the gap.
Sources
- Xbox. “Xbox Series X” Confirms the single HDMI 2.1 output and listed video features.
- Xbox Support. “How to set up Remote Play” Covers streaming requirements, bandwidth, and supported operating systems.
- Xbox Support. “About cloud gaming” Details supported devices, regions, and Game Pass cloud access.