Does this transfer speed sound correct?

Transferring 16.7GB of music files. So lots of small files


USB 3.0 on back of mobo -> usb ->sd card adapter -> micro sd card.

The micro sd card is NY 128GB High Performance microSDXC UHS-I/U1 Class 10 Memory Card without Adapter, Speed Up to 60MB/s (P-SDUX128U160G-GE)

taking 30min to transfer. 10-12MB/s

halfway through it went up to 15MB/S

I thought it would be faster.

yes, sounds about right.

Link to the adapter you're using?

Good point ATMINSIDE. Adapter was bought from walmart maybe 10 years ago.

Targus brand. It does say high speed on it, lol. No mention of usb 1.0 or 2.0. But I bet it is 2.0.

I've used this one for over a year now and get fantastic transfer speeds from it. Doesn't require an adapter for SD or microSD, just plug straight in to the reader.
https://www.amazon.com/Transcend-microSDHC-Reader-TS-RDF5K-Black/dp/B009D79VH4