Kingston KC3000 1TB vs Sabrent Rocket 4 Plus 1TB
Kingston KC3000 1TB is at least the equal of the other on every measure that decides this, and ahead on at least one.
| Specification | KingstonKC3000 1TB | SabrentRocket 4 Plus 1TB |
|---|---|---|
| Capacity (GB) | 1000 | 1000 |
| Sequential read (MB/s) | 7000 | 7000 |
| Sequential write (MB/s) | 6000better | 5300 |
| Current best price | $223.36betterat Newegg · captured 2026-09-13 | $279.99at Amazon.com · captured 2026-09-12 |
| Price per TB | $223.36better | $279.99 |
| Endurance (TBW) | 800better | 700 |
| Warranty (years) | 5 | 5 |
| DRAM cache | Yes | Yes |
| NAND type | tlc | tlc |
| Controller | Phison E18 | Phison PS5018-E18 |
How these two compare
Sequential throughput
Kingston KC3000 1TB states 7000 MB/s read and 6000 MB/s write; Sabrent Rocket 4 Plus 1TB states 7000 MB/s read and 5300 MB/s write, both over PCIe. Sequential numbers like these describe large sustained transfers; the responsiveness you notice day to day tracks random access more closely than the peak figures do.
Random access
Kingston KC3000 1TB is rated 900,000 IOPS random read and 1,000,000 random write; Sabrent Rocket 4 Plus 1TB, 350,000 and 700,000. Random 4K access — many small, scattered operations — is what a drive does booting, launching apps and juggling everyday tasks, and it tracks that feel far more closely than the sequential figures above.
Price
Kingston KC3000 1TB is $223.36 ($223.36 per TB); Sabrent Rocket 4 Plus 1TB is $279.99 ($279.99 per TB).
Endurance
Kingston KC3000 1TB is rated for 800 TBW and Sabrent Rocket 4 Plus 1TB for 700 TBW — the total the maker warrants you can write over the drive's life. A typical desktop writes only a few terabytes a year, so either rating is many years of headroom; the figure matters mainly as a relative signal of how hard each is built to be driven.
DRAM cache
On the cache question: Kingston KC3000 1TB carries a DRAM cache, and Sabrent Rocket 4 Plus 1TB carries a DRAM cache. The DRAM keeps the flash-translation table close, sparing a lookup on nearly every access; a drive without it leans on host memory or its own flash, which usually shows as slower sustained random writes rather than in the headline sequential numbers.
NAND, controller and warranty
On the flash itself: Kingston KC3000 1TB uses TLC, and Sabrent Rocket 4 Plus 1TB uses TLC. NAND tiers count bits per cell — more bits pack more capacity into the same silicon but shorten write endurance and slow sustained writes, which is why QLC sits below TLC on lasting performance even when the sequential numbers match. Controller: Kingston KC3000 1TB uses the Phison E18 and Sabrent Rocket 4 Plus 1TB uses the Phison PS5018-E18. The controller runs wear-levelling, error correction and the mapping table, so it shapes sustained and random behaviour as much as the flash does — though the model name alone predicts little without testing. Kingston KC3000 1TB carries a 5-year warranty and Sabrent Rocket 4 Plus 1TB carries a 5-year warranty — the length the maker will stand behind the drive, and usually a proxy for the endurance it is rated to.
Which to buy
Against the other, Kingston KC3000 1TB is even or ahead on every tracked measure and behind on none, which is the one case where the choice needs no compromise.
Common questions about this pair
- Which is faster, Kingston KC3000 1TB or Sabrent Rocket 4 Plus 1TB?
- Kingston KC3000 1TB states 7000 MB/s read and 6000 MB/s write; Sabrent Rocket 4 Plus 1TB states 7000 MB/s read and 5300 MB/s write, both over PCIe. Sequential numbers like these describe large sustained transfers; the responsiveness you notice day to day tracks random access more closely than the peak figures do.
- How do Kingston KC3000 1TB and Sabrent Rocket 4 Plus 1TB compare on random access?
- Kingston KC3000 1TB is rated 900,000 IOPS random read and 1,000,000 random write; Sabrent Rocket 4 Plus 1TB, 350,000 and 700,000. Random 4K access — many small, scattered operations — is what a drive does booting, launching apps and juggling everyday tasks, and it tracks that feel far more closely than the sequential figures above.
- Which costs less per terabyte, Kingston KC3000 1TB or Sabrent Rocket 4 Plus 1TB?
- Kingston KC3000 1TB is $223.36 ($223.36 per TB); Sabrent Rocket 4 Plus 1TB is $279.99 ($279.99 per TB).
- Should you buy Kingston KC3000 1TB or Sabrent Rocket 4 Plus 1TB?
- Against the other, Kingston KC3000 1TB is even or ahead on every tracked measure and behind on none, which is the one case where the choice needs no compromise.