Reading speed is 18-20 Mb/s, writing is 7-8 Mb/s. I took it to the radio, the speed is still tolerable in it, unfortunately there are radios that do not support modern USB flash drives, you have to get out with what is from usb 2.0 on sale today.
32GB SanDisk USB Flash Drive (SDCZ430-032G-A46)
78 Review
Sandisk Ultra Flair 128 GB Silver USB Flash Drive: Reliable and High-Speed Storage
65 Review
Kingston DataTraveler flash drive 100 G3 256 GB, 1 pc. black
74 Review
Titan Gray Samsung BAR Plus 256GB USB 3.1 Flash Drive (MUF-256BE4/AM) with Up to 400MB/s Transfer Speed
69 Review
2 TB External HDD ADATA DashDrive Durable HD650, USB 3.2 Gen 1, Blue
55 Review
Game console Microsoft Xbox One X 1000 GB HDD, black
53 Review
2 TB External HDD Western Digital WD Elements Portable (WDBU), USB 3.0, black
84 Review
Shock-Resistant Transcend StoreJet 25M3 USB 3.1 Slim Portable Hard Drive with 500GB Capacity
99 Review