Quick Answer: Daisy chaining connects multiple monitors through one DisplayPort cable using Multi-Stream Transport (MST) — a cable runs from the PC to the first monitor’s DisplayPort In, then from that monitor’s DisplayPort Out to the next monitor’s DisplayPort In. You need a GPU with DisplayPort 1.2 or newer, monitors with both DP In and DP Out ports, and MST enabled in each monitor’s OSD. With DisplayPort 1.4 and Display Stream Compression (DSC), a single chain supports up to 4 monitors at 1440p or 2 monitors at 4K 60Hz.
Running three monitors usually means three cables snaking back to the PC, plus a graphics card with three free outputs. Daisy chaining skips most of that — one cable does the work of several, as long as the GPU and the monitors themselves support it. Here’s how it actually works, what hardware you need, and how many displays you can realistically run off one chain.
What daisy chaining actually is
Daisy chaining uses DisplayPort Multi-Stream Transport (MST), a feature built into the DisplayPort standard that lets a single output carry more than one independent video stream at once. Instead of one cable per monitor, the signal passes through each display in sequence: PC → Monitor 1’s DisplayPort In, then Monitor 1’s DisplayPort Out → Monitor 2’s DisplayPort In, and so on. Each monitor in the middle of the chain needs both a DP In and a DP Out port to pass the signal along; only the last monitor in the line can get away with DP In alone.
This is different from a USB-C dock or hub that splits a signal to multiple monitors from a central box — daisy chaining runs the connection display-to-display, with no hub required, which is part of why it’s popular for keeping a desk free of extra cabling and power bricks.
What you actually need
| Requirement | Why it matters |
|---|---|
| DisplayPort 1.2 or newer on the GPU | MST wasn't part of the DisplayPort spec until 1.2 — older ports can't daisy chain at all |
| DisplayPort In and Out on each monitor (except the last) | The Out port is what passes the signal to the next display in line |
| MST enabled in the OSD menu | Most monitors ship with MST switched off by default |
| DP-to-DP cables at every link | HDMI doesn't support MST, so it can't be used anywhere in the chain |
USB-C works too, but only if the port specifically supports DisplayPort Alt Mode or Thunderbolt — both of these carry an MST-capable DisplayPort signal over the USB-C connector. A regular USB-C data port without either of those features can’t pass a daisy-chained signal, no matter how capable the monitors on the other end are.
Dell UltraSharp U2723QE — Best for USB-C Daisy Chaining
- One of the first 27" 4K monitors that can daisy chain a second full 4K display at full resolution over a single USB-C cable, using Display Stream Compression (DSC) to stay within bandwidth.
- USB-C port (set to MST On in the OSD) takes one cable from a laptop, then the DisplayPort Out feeds a second monitor down the chain — no dock or hub needed.
- Also works as a standard DP-to-DP daisy chain link for desktops with a DisplayPort 1.4 GPU.
Setting up a multi-monitor chain usually means ordering more than one panel at once, plus the DP cables to connect them — a free 30-day Amazon Prime trial covers two-day shipping on the whole order instead of waiting on separate deliveries for each piece.
Dell P2723QE — Budget Daisy Chain Pick
- Supports the same DisplayPort MST daisy chaining as Dell's U-series at a lower price, with a single USB-C port rather than the U2723QE's fuller hub feature set.
- A practical middle chain-link or end-of-chain monitor when the first display in the line is already doing the USB-C-to-laptop work.
- Still needs MST switched on in its OSD menu and a DisplayPort 1.2+ source — the daisy chain requirements don't relax just because the monitor costs less.
How many monitors you can actually chain
Port support is only half the equation — bandwidth is the real ceiling. DisplayPort 1.4 has a maximum bandwidth of 25.92 Gbps, and with Display Stream Compression (DSC) active, that’s enough to drive up to 4 monitors at 1440p or 2 monitors at 4K 60Hz in a single chain. Without DSC, DisplayPort 1.2’s lower bandwidth runs out much faster once 4K resolution is involved — which is why chaining a pair of 4K panels specifically requires DSC support on the GPU and on every monitor in the line, not just DisplayPort ports in general.
In practice, that means a chain of 1440p monitors has more headroom than a chain built around 4K panels. Anyone planning a 4K daisy chain should confirm DSC support on the graphics card and every monitor before buying, since a chain that looks correct on paper can still fail to hit 60Hz if one link is missing it.
Daisy chain vs. a USB-C hub or dock
Daisy chaining and a hub-based multi-monitor setup solve the same problem — more displays than GPU ports — in different ways. A chain runs display-to-display with no extra hardware, which keeps the desk simpler, but a failure or a disabled MST setting on one monitor can affect the displays further down the line. A dock or hub distributes the connection from one central point instead, which our best monitor arm and best KVM switch monitor guides cover from the cable-management and switching angles. Either approach works for a dual monitor setup or beyond — daisy chaining is simply the option that needs the fewest cables running back to the PC itself.
Monitor daisy chain by the numbers
- 25.92 Gbps. The maximum bandwidth of a DisplayPort 1.4 connection — the ceiling that determines how many monitors and what resolution a chain can support.
- 4 monitors. The maximum chain length at 1440p over DisplayPort 1.4 with DSC active.
- 2 monitors. The maximum chain length at 4K 60Hz over the same connection — half the count, because of the higher per-display bandwidth 4K requires.
- 1.2. The DisplayPort version where MST daisy chaining was introduced — anything older can’t chain at all, regardless of what the monitors support.
Should you daisy chain your setup?
Daisy chaining is worth setting up if you’re already buying monitors with DP In and DP Out ports and want to avoid running multiple cables back to the PC — it’s a genuine convenience win, not just a cable-management trick, especially for a USB-C laptop setup like the U2723QE’s single-cable dual-4K configuration. It’s not worth chasing if your GPU tops out at DisplayPort 1.1, or if the monitors you already own lack a DisplayPort Out — in that case, a traditional hub or one cable per display remains the simpler, more reliable path to the same dual monitor setup or triple monitor setup. Either way, confirm MST support and DSC compatibility before buying, since those two settings — not the number of ports — are what actually determine whether the chain works.