MLC (multi or dual level control) means two logical bits per cell or 4 voltage levels per cell. Fewer voltage levels means higher reliability and increased lifespan. Due to higher price MLC based SSDs are slowly being phased out.

SQF-S25M8-64G-SAC
SSD MLC 64GB 820 SQF
1,845.00 1845.0 ZAR Excl. VAT
SSD25-3DTS-2TB
SSD 2.5" SSD230S 2TB TLC R/W: 560MB/s, 520MB/s DRAM Cache
4,080.00 4080.0 ZAR Excl. VAT
SSD25-3DTS-4TB
SSD 2.5" SSD230S 4TB TLC R/W: 560MB/s, 520MB/s DRAM Cache
8,040.00 8040.0 ZAR Excl. VAT