What is TBW in SSD

TBW (Terabytes Written) is a key metric that determines SSD lifespan.

TBW (Terabytes Written) is a key metric that determines SSD lifespan.

What Does TBW Mean

TBW refers to the total amount of data that can be written to an SSD before it may fail.

Example

  • 500GB SSD with 300 TBW → You can write 300 terabytes over its lifetime

Why TBW Matters

  • High-write environments need higher TBW
  • Low TBW may lead to early failure

TBW vs DWPD

  • TBW = total lifetime writes
  • DWPD = writes per day

How to Choose

  • Office use → low TBW acceptable
  • Industrial → high TBW required