The power supply with the product ID "51775" from Qoltec does not fit into the AOC 22 (22B2H) monitor if the adapter plug size must be 5.5 x 2.5 mm.

Here are the details:
- The Qoltec power adapter 51775 has an output connector size of 6.5 x 4.4 mm.
- However, the AOC 22B2H monitor requires a plug with a different size, namely 5.5 x 2.5 mm, as you mentioned.

Therefore the power supply 51775 from Qoltec is not compatible with the AOC 22 (22B2H) monitor.

Is there another cable with the adapter plug size 5.5 x 2.5 mm?