*Maximum values depend on the laptop, operating system, power supply and simultaneous display arrangement. They are not universal promises.
| What matters |  Plugable TBT4-UDZ | Choose a dock above | Choose a dock above |
|---|
| Laptop connection | Thunderbolt 4/3, USB4, or supported USB-C with reduced modes | — | — |
| Display technology | thunderbolt | — | — |
| Maximum displays* | 4 | — | — |
| Power to laptop (W)* | 100 | — | — |
| HDMI sockets | 2 | — | — |
| DisplayPort sockets | 2 | — | — |
| Display conditions | Up to 4 × 4K60 on specified Windows TB4/USB4 hosts; Mac maximum two subject to host | — | — |
| Mac requirements | Native limits apply; base M1/M2 one external display | — | — |
| Windows requirements | Windows 10+ on the specified native-video host; display modes depend on GPU/DP capabilities | — | — |
| Wired network | 2.5 Gigabit Ethernet | — | — |
| USB peripherals | 7 USB accessory ports; rear USB-C is USB data only | — | — |
| Before buying | No downstream Thunderbolt accessory port Mac and Windows monitor counts differ; no universal four-screen promise | — | — |
| Current listing | Check on Amazon ↗ | | |