HUANUO 32" Small Electric Standing Desk Adjustable Height, 4 Memory Height Settings, Sit Stand Up Desk for Home Office & Computer Workstation, LightWalnut

You’re almost certainly looking at a custom or mix of a couple of different products. Depending on the construction of your existing desk you may be able to reuse the existing desk top and/or upper section. Look at something like this small Flexispot desk or this very inexpensive mini standing desk, both linked below. Even just for the base hardware and may use your existing top. https://www.flexispot.com/small-standing-desk-e7-mini https://www.amazon.com/dp/B0F9X3FDYY You may need to get creative and make sure you use secure mechanical connections (screws and through bolts) to attach the upper section to ensure it is safe and sturdy. Good luck!