Review on 🚀 Rocketek USB C Portable Card Reader and Adapter for Micro SD Cards - TF Card, Micro SDXC/SDHC - MacBook Air, Galaxy S10 & Other Type C Devices by Roy Ramos

I used a Samsung 64GB 100MB/s (U3) MicroSDXC Evo Select memory card with adapter to do an unofficial write speed test of this Rocketek card reader. I copied a 5.9GB movie file from a 2018 MacbookPro SSD to a Samsung microSD card connected to this Rocketek USB-C card reader. The maximum write speed achieved by this card reader was was 19.9 MB/s. I did the same exercise with a Samsung microSD card connected to a Nekteck USB C OTG SD 4.0 card reader at up to 250MB/s for SDXC. The maximum write speed that the Nekteck card reader achieved was 68.8 MB/s. So, if we consider the writing speed, this Rocketek card reader is inferior to other products available on the market.