先看结论
http://pic.filia.us/ptt/speedtest/Sandisk_Ultra_microSD200G.jpg
https://i.imgur.com/zx5tTtR.jpg
Sequential Read (Q= 32,T= 1) : 95.79 MB/s
Sequential Write (Q= 32,T= 1) : 49.33 MB/s
http://pic.filia.us/ptt/speedtest/Sandisk_ExtremePro_SD64G.jpg
https://i.imgur.com/MFcGayu.jpg
Sequential Read (Q= 32,T= 1) : 95.14 MB/s
Sequential Write (Q= 32,T= 1) : 85.41 MB/s
Ultra 200G就是amazon黑色星期五特价的那张，跟朋友合买入手价1556
出厂默认格式化成exfat，容量是183GB
来把电脑的音乐全部塞进去XD
extremepro 64g入手价1200多虽然没有标A1，但4k比有A1的ultra快