A docking station that powers three 4K monitors simultaneously, charges a laptop at 140W, and connects 14 devices through a single USB-C cable just hit its all-time low. The Anker Prime docking station DL7400 is down to $227, off its $299 list price and the lowest price this dock has ever reached on Amazon. Access is behind the Prime paywall, though the 30-day no-card trial is there for anyone who wants in without committing.
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Triple 4K at 60Hz via DisplayLink, one cable to the laptop
The DL7400 uses DisplayLink technology to drive three external monitors at 4K and 60Hz simultaneously from a single USB-C connection to the host laptop, which removes the multi-monitor limitation that most docks face when the laptop has only one Thunderbolt or USB-C port. DisplayLink handles the display compression and decompression in software, which is why the driver installation is a required step before the triple-display configuration works, and why DRM-protected streaming on Netflix and Prime Video shows a black screen by default. That limitation has a workaround for browser-based streaming by disabling hardware acceleration, and locally stored or non-DRM content plays without issue. Two HDMI ports and one DisplayPort cover the physical connections to the three monitors.
