As the LTAP Mini can be powered via MicroUSB and has the same cpu architecture as the mAP I cannot see a reason it does not:Supported Hardware
The device is fully compatible with our PWR-LINE AP and the newest revisions of products that have a microUSB port, such as- hAP lite, hAP lite tower, hAP mini, mAP and mAP lite have pwr-line interface
https://mikrotik.com/products/compare/R ... 2R-2nD-LTm