Anker Prime DL7400 vs Plugable UD-6950PDZ: three monitors on an M1/M2 Mac

Two DisplayLink docks that get past Apple’s one-display limit, compared by outputs, charging, ports and the trade-offs each maker documents.

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Swipe the table sideways to see both models.

Spec	Anker Prime Docking Station (14-in-1, DisplayLink) A83B3	Plugable USB-C Triple 4K Docking Station UD-6950PDZ
Monitor outputs	Conflicting sources1 DisplayPort and 2 HDMI; Anker’s FAQ says the HDMI outputs drive 4K displays, while its spec table lists 8K at 30Hz. [1]	1 native output plus 2 DisplayLink outputs at 4K 60Hz; each output offers HDMI or DisplayPort. [2]
Laptop charging	Up to 140W, with a laptop that supports USB PD 3.1. [1]	Conflicting sourcesUp to 100W in the spec table; another section of the page says 65W. [2]
USB and network	3 USB-C (two at 10Gb/s), 3 USB-A, 2.5Gb Ethernet. [1]	6 USB-A at 5Gb/s, Gigabit Ethernet. [2]
Card readers and audio	SD and microSD readers, audio jack. [1]	Audio jack; no card reader listed. [2]
Mac requirements	macOS 13.5 or later, DisplayLink app with Screen Recording permission. [1]	DisplayLink Manager with Screen Recording permission; Plugable’s support articles list macOS 14 and later. [2]
Buy	Check price	Check price

Which one should you get?

It lists up to 140W charging, faster Ethernet, card readers and 10Gb/s USB-C ports.

Every output takes either HDMI or DisplayPort, and its two DisplayLink outputs are rated 4K 60Hz.

Both rely on DisplayLink for the extra screens: protected (HDCP) video will not play on DisplayLink displays, and Plugable notes no Retina scaling on them. Fine for office work, not for gaming or video editing.
Each maker’s own page contradicts itself on one figure (Anker HDMI resolution, Plugable charging wattage). Plan on the lower number.
No hands-on testing. Prices and availability are not tracked.