Speed:
Read Rate(Sequential):up to 550MB/S.
Write Rate(Sequential):up to 510MB/S.
Speed is depend on host device, interface, usage conditions and the type of your device. 

Feature:
Support System: windows 2000/XP/Vista,7,8,10.Mac OS: 8.6 and above.Linux v.2.6.x+, Chrome OS .
Support Device:Computer/Laptop/Server.
Memory management:    ECC (Error Correction Code) .
Interface type: SATA III 6Gb/s (compatible SATA II 3Gb/s) .
Safety: Dustproof,Shockproof,
X130 PRO: PC Plastic material Body.Black.
Reliability:    2,000,000 hours. 
Form factor:    2.5 inches (100mm (L) x 69.85mm (W) x 7.00mm (H)) .

Static and dynamic:
1. Bad block management.  
2. TRIM management.
3. SMART management/Over-Provision/Low power management. 

About capacity: 
128GB     Approximately  119 GB.
256GB     Approximately  238 GB.
512GB     Approximately  476 GB.
1TB     Approximately  930 GB.
Vendors are using decimal arithmetic: 1MB = 1000KB, 1G = 1000MB calculated, but the operating system is using binary arithmetic: 1MB = 1024KB, 1GB = 1024MB. So there are some differences between display capacity and nominal capacity of flash memory products