MobileRead Forums - View Single Post - iPad External memory Read/Write speeds with iPad Pros (2020) and iPad Air 4

OtinG · 05-06-2021, 05:27 PM

Thanks for all the information!

I'm going to reformat my SanDisk 256GB SSD to APFS and use it with my iPad Air 2020. It is too small a capacity for what I want with my MacBook Pro. I want to get a good 1TB to 2TB SSD drive for it so that I have plenty of storage.

ETA: I reformatted the SanDisk 256GB SSD to APFS. The speed connected with my MacBook Pro was slightly less, but with my iPad Air 2020 it tripled the WRITE speed and significantly increased the READ speed by about 50%.

I tested a new SanDisk 128GB USB-C USB 3.1 flash drive. I first tested it with exFat, then reformatted it with APFS. The tests have been added to the first post in this thread. It has good READ speed, but the WRITE speed is terrible at only 2.8 MB/s. I’m disappointed in this one and feel like I wasted $20.

05-06-2021, 05:27 PM	#20
OtinG Old Gadget Guy Posts: 1,913 Karma: 6854865 Join Date: Jun 2018 Device: Oasis 3, iPhone 13 Pro Max, iPad mini 6, iPad Air 2020, Alexa Devices	Thanks for all the information! I'm going to reformat my SanDisk 256GB SSD to APFS and use it with my iPad Air 2020. It is too small a capacity for what I want with my MacBook Pro. I want to get a good 1TB to 2TB SSD drive for it so that I have plenty of storage. ETA: I reformatted the SanDisk 256GB SSD to APFS. The speed connected with my MacBook Pro was slightly less, but with my iPad Air 2020 it tripled the WRITE speed and significantly increased the READ speed by about 50%. I tested a new SanDisk 128GB USB-C USB 3.1 flash drive. I first tested it with exFat, then reformatted it with APFS. The tests have been added to the first post in this thread. It has good READ speed, but the WRITE speed is terrible at only 2.8 MB/s. I’m disappointed in this one and feel like I wasted $20. Last edited by OtinG; 05-06-2021 at 08:41 PM.