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Both USB-C ports support the FULL USB-C featureset. So they can work with an A>C adapter for data only, but it will prevent them from passing video or power. When used with type-c connections, both can do power delivery to charge and alt-mode DP for monitors/docking station. The Gen1 will do 5Gpbs, the Gen2 will do 10Gbps. Power and alt-mode DP is unchanged between Gen1 and Gen2.
The always on you are spot-on, it's one that can be used to charge OTHER devices even when the laptop isn't on, this if unwanted should be able to be turned off in the BIOS (I have T14 not L14, but BIOS is probably close to same).
I'm a fan of the Kensington SD4600P USB-C dock. It supports 2 monitors up to 4K (only 1 @4K60 or 2@4K30 if I remember correctly), has 3 USB type-A ports, a USB 3.x Type-C port, ethernet (supported out of the box by every distro I've tried) and audio and can be found used for like $50 sometimes, and even new it can be found for $100 (although becoming rare at that price as everything goes up due to "supply chain shortages"). The USB-C connector cable is replaceable, so you can get a 2M cable to replace the 1M cable it comes with (which is too short for a lot of use cases). It also has 2 mounting screw holes on the back that allows it to be mounted onto some surfaces (I have it mounted on my computer desk). But any USB-C hub will work with that laptop.
Last edited by Timothy Miller; 02-08-2021 at 12:45 PM.
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