It’s a VWINDESK, not sure what model or if they’re still in business. I’ve had it for a couple years now and I like it. It is strong enough to raise and lower with me (heavy) on top of it.
Essentially if it doesn’t Have four legs it will wobble when in standing position. The four leg desks need four hydraulic lifts instead of two so they’re quite a bit more expensive so I went with one with two center mounted lifts.