A must-have upgrade to keep up with the times Different from traditional mechanical hard drive, the AX2 uses features like FLASH technology, low power consumption and high-speed transfer. It is the best choice for replacing traditional hard drives. SLC Caching technology. Four times faster The advanced SLC Caching algorithm technology makes its read/write speed easily 4 times[1] faster than traditional hard drives. Shock and drop resistant for safe use Solid state drives are shock and drop resistant (1500G/0.5ms) and do not make annoying mechanical noises. It can also effectively avoid computer crash due to kicking. Wear-Leveling prolongs the service life greatly The powerful Wear-Leveling technology and ECC (Error Correction Code) function enhance the reliability of data transfer and prolong the service life of the SSD. Performance Crystal Disk Mark & Terabyte Written 256GB Read/Write: up to 520/430 MB/s , 200TBW512GB Read/Write: up to 530/470 MB/s , 400TBW1TB Read/Write: up to 540/490 MB/s , 800TBW2TB Read/Write: up to 540/490 MB/s , 1,600TBW SATA SSD Comparison Advanced - AX2 Elite - EX2 Quantum - QX Capacity 256GB / 512GB / 1TB / 2TB Capacity 512GB / 1TB / 2TB / 8TB / 16TB Capacity 2TB / 4TB Interface SATA III 6Gb/s Interface SATA III 6Gb/s Interface SATA III 6Gb/s Performance 512GB Read: 530MB/s, Write: 470MB/s 1TB&2TB Read: 540MB/s, Write: 490MB/s Performance All capacity Read: Up to 550MB/s Max , Write: 520MB/s Performance All capacity Read: Up to 560MB/s Max , Write: 500MB/s Vibration 20G (non-operating) Vibration 20G (non-operating) Vibration 20G (non-operating) MTBF 1,000,000 hours MTBF 1,000,000 hours MTBF 1,500,000 hours