Question about Contini Height adjustable office desk

This black box at the back right is the lift motor for the table top. In general, height-adjustable tables with an externally mounted lift motor are cheaper to manufacture. However, they can also lift less weight, the Contini table can only lift 50 kg, tables with two lift motors can lift twice that or more. It is highly recommended to choose a table that has two lift motors integrated in the columns. These are more durable because the weight is distributed over two motors and the height can also be adjusted much more quickly. A similarly expensive model with two lift motors would be this table:

Hammerbacher UPLINER-K desk, elec. adjustable,700-1200mm, WxD 1200x800mm, beech decor (120 cm)