SD Cards and micro SD Cards

Secure Digital Cards:

Capacity	NAND Flash	Application Class	Video Speed Class	Sequential R/W (up to)	Random R/W (up to)
16GB ~ 256GB	3D TLC	A1	V30	95/35 MB/s	2,500/1,500 IOPS
4GB ~ 64GB	3D TLC, pSLC	A1	V30	95/85 MB/s	2,500/1,500 IOPS
128MB ~ 32GB	2D SLC	N/A	V10	65/55 MB/s	2,000/1,500 IOPS
2GB ~ 128GB	2D MLC, pSLC	A1	V30	95/90 MB/s	2,000/1,500 IOPS

MicroSD Cards

Capacity	NAND Flash	Application Class	Video Speed Class	Sequential R/W (up to)	Random R/W (up to)
16GB ~ 256GB	3D TLC	A1	V30	95/35 MB/s	2,500/1,500 IOPS
4GB ~ 64GB	3D TLC, pSLC	A1	V30	95/85 MB/s	2,500/1,500 IOPS
128MB ~ 4GB	2D SLC	N/A	N/A	65/55 MB/s	2,000/1,500 IOPS
2GB ~ 64GB	2D MLC, pSLC	A1	V30	95/90 MB/s	2,000/1,500 IOPS