Sandisk 256GB V30: https://www.bhphotovideo.com/c/product/1431035-REG/sandisk_sdsdxxy_256g_ancin_extremepro_sdxc_256gb_card.html/BI/6857/KBID/7410
Prograde 256GB V90: https://www.bhphotovideo.com/c/product/1406011-REG/prograde_digital_pgsd256gbcjbh_pgd_256gb_sdxc_uhs_ii.html/BI/6857/KBID/7410
Transcend USB 3.1 Card Reader: https://www.bhphotovideo.com/c/product/1188852-REG/transcend_ts_rdf9k_all_in_one_usb_3_1_3_0.html/BI/6857/KBID/7410
ProGrade USB 3.1 Card Reader: https://www.bhphotovideo.com/c/product/1450886-REG/prograde_digital_pgrwsdhcxcana_pgd_sdxc_uhs_ii_usb.html/BI/6857/KBID/7410
In this video Lee Morris compares a Sandisk V30 memory card against a Prograde V90 and a Transcend card reader against a ProGrade card reader that is more than 4 times the price. As expected the ProGrade card was around 3 times faster but we were also shocked to find that the ProGrade memory card reader worked far better than the cheaper Transcend card. Even if you don’t want to spend the money on a more expensive memory card, buying a nicer ProGrade card reader is still worth it.