Best 4TB Western Digital TLC SSDs
There are 8 4TB Western Digital TLC SSDs compared here. The fastest is the Western Digital Black SN8100 at 14900 MB/s read at 4TB, and the highest-rated for endurance is the Western Digital RED SA500 (2500 TBW). Sequential reads across the group span 530–14900 MB/s at 4TB.
Why this configuration
A 4TB Western Digital TLC SSD is a mainstream all-rounder. TLC balances speed, endurance and price for general use. Western Digital specifically tends to be chosen here for its firmware track record and warranty support.
4TB starts to replace juggling several smaller drives.
Usually chosen for: everyday desktop and laptop storage.
Good fit: everyday all-rounder use, from OS drive to game library; large libraries and archives on a single drive.
Ranked list
Speeds on this page are the manufacturer's 4TB ratings where published (8 of 8 drives), not the family headline figure. Rated writes at 4TB run 530–11000 MB/s.
| # | Model | Tier | Controller | Read MB/s (at 4TB) | TBW | |
|---|---|---|---|---|---|---|
| 1 |  Western Digital WD BLACK™ AN1500 NVMe 1TB, 2TB, 4TB | Top-tier | SANDISK 20-82-00705 (WD Custom Con | 6500 | — | Find on Amazon |
| 2 | Western Digital Black SN8100 1TB, 2TB, 4TB, 8TB | High-end | Silicon Motion SM2508 (SanDisk-bra | 14900 | — | Check price on Amazon |
| 3 | Western Digital Black SN850X 1TB, 2TB, 4TB, 8TB | High-end | WD 20-82-20035-B2, WD 20-82-000292 | 7300 | — | Check price on Amazon |
| 4 | Western Digital Black SN7100 500GB, 1TB, 2TB, 4TB | Mid-range | SanDisk Polaris 3 | 7250 | — | Check price on Amazon |
| 5 |  Western Digital RED SA500 500GB, 1TB, 2TB, 4TB | Mid-range | MARVEL 88SS1074 (2-Core, 4-Canais, | 560 | 2500 | Find on Amazon |
| 6 |  Western Digital BLUE 250GB, 500GB, 1TB, 2TB, 4TB | Mid-range | MARVEL 88SS1074 (2-Core, 4-Canais, | 530 | 600 | Find on Amazon |
| 7 |  Western Digital Blue™ 250GB, 500GB, 1TB, 2TB, 4TB | Mid-range | MARVEL 88SS1074 (2-Core, 4-Canais, | 530 | 600 | Find on Amazon |
| 8 | Western Digital Blue SN5000 500GB, 1TB, 2TB, 4TB | Value | WD Polaris 3 | 5500 | — | Check price on Amazon |
The parts, explained
4TB handles big Steam libraries, video projects and archives.
TLC NAND is the mainstream choice — a solid balance of endurance, speed and cost.
Staying with Western Digital means consistent firmware, tooling and warranty handling across the range.