Need More Monitors for a Type-C Host?

June 14, 17 - Posted in: Tech Talk by Kevin Quinn, Thee DocKtor

Targus has released a set of USB Type-C Display Port Alternate Mode Adapters compatible with Thunderbolt 3 ports. All three provide video to an external monitor when connected to either USB Type-C Thunderbolt or DisplayPort Alternate Mode host ports. (They do not provide another monitor connection on USB 3.0 Type-A or USB SuperSpeed Type-C ports, nor do they provide Type-C Power Delivery or PD Pass Through.)

• The ACA932 provides up to 4K2K at 30Hz video to a DisplayPort 1.2 monitor port.

• The ACA933 provides up to 4K2K at 30Hz video to an HDMI 2.0 monitor port.

• The ACA934 provide up to 2048x1152 at 60Hz to a VGA monitor port.

These adapters can be used for a third or even fourth display monitor output if the host's graphics support the multiple streams. For instance, using the 2016 MacBook with Lightbar, the DocKtor rendered 4K2K @ 30Hz using the DOCK410 on one TB3 port, 2560x1600 @ 60Hz using the ACA932 on another TB3 port, and 2048x1152 @ 60Hz using the ACA934 on a third MacBook TB3 port, and while the internal monitor was also rendering at full default resolution and speed. Type-C host/device compatibility varies widely, so be sure to try it before you buy it.

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