KLEVV CRAS C925G 1TB: mid-capacity value done right (2026)
Quick answer
The C925G 1TB earns its place as the default pick of the lineup: it pairs near-ceiling 7,400 MB/s reads with double the endurance of the smaller tier, all under a five-year warranty at a value price.
Read: 7400 MB/s Write: 6300 MB/s Endurance: 1200 TBW Warranty: 5 years Interface: M.2 4.0 x 4
The KLEVV CRAS C925G 1TB hits near-ceiling Gen4 speeds of 7,400 MB/s while carrying an unusually generous 1,200 TBW endurance rating and five-year coverage.
Controller & Memory
The C925G refresh keeps what made KLEVV's CRAS line popular - Maxio's MAP1602 DRAM-less controller managing SK Hynix 238-layer 3D TLC NAND - and adds a copper-graphene composite heatsink that the company claims runs roughly 15 percent cooler than its previous aluminium plate. The controller is a 12nm quad-channel part supporting NVMe 2.0 over PCIe 4.0 x4, holding mapping tables in system RAM via Host Memory Buffer, with SLC caching smoothing everyday write bursts. The single-sided M.2 2280 board measures just 2.8 mm tall including its factory heatsink.
This 1 TB model sits at the sweet spot of the range: writes are rated at 6,300 MB/s, splitting the difference between the 512 GB tier's 6,200 and the flagship 2 TB's 6,500, while every capacity shares the same up-to-7,400 MB/s read ceiling. Random ratings stand at 670K read and 980K write IOPS. Endurance is where the spec sheet turns heads - 1,200 TBW doubles the entry tier's allowance and comfortably exceeds many costlier drives.
Hardware-wise it closely parallels the Lexar NM790, built from the same controller family and similar Hynix flash, and it competes on paper with pricier names like WD's SN770. What separates the KLEVV in practice is the combination of high rated endurance, a five-year warranty, and a heatsink already fitted at a budget price point.
Storage Comparisons:
C925G 2025 Performance & Benchmarks
Rated figures reach 7,400 MB/s sequential reads and 6,300 MB/s sequential writes over PCIe 4.0 x4, alongside 670,000 random-read and 980,000 random-write IOPS. Independent testing of the platform supports the claims: Tech4Gamers measured around 7,378/6,383 MB/s peak sequential on the 2 TB sibling and singled out its class-leading 4K latency, while Basic Tutorials found their sample slightly below rated numbers yet ahead of the Crucial P3 Plus sequentially. At 1 TB the pseudo-SLC cache grows large enough that ordinary desktop workloads never approach its edge; only continuous multi-hundred-gigabyte transfers reveal the drop toward native NAND throughput once caching ends.
Klevv C925G 2025 1 TB vs M.2 4.0 x 4 peers
Switch between sequential throughput and random IOPS to see how this drive stacks up against other M.2 4.0 x 4 SSDs in our database. The highlighted bar is the drive on this page — click any other bar to open that drive.
- Patriot Viper PV593 1 TB: 14,500 MB/s read, 14,000 MB/s write
- Patriot Viper PV593 2 TB: 14,500 MB/s read, 14,000 MB/s write
- Patriot Viper PV593 4 TB: 14,500 MB/s read, 14,000 MB/s write
- Patriot Viper PV573 2 TB: 14,000 MB/s read, 12,000 MB/s write
- Klevv C925G 2025 1 TB (this drive): 7,400 MB/s read, 6,300 MB/s write
In practical terms: operating systems boot almost instantly, game levels stream without hitching, and large media copies run at near-interface speed until the cache gives way. The L1.2 ultra-low-power state benefits laptop battery budgets. Sustained professional writing remains the one workload category where DRAM-equipped competitors hold an advantage, as mapping operations must share system memory bandwidth through HMB instead of dedicated silicon.
Klevv C925G 2025 vs Competitors
See how the C925G 2025 stacks up against other M.2 4.0 x 4 drives in our database:
Compare with rival drives:
Endurance, TBW & Warranty
KLEVV covers this drive with a five-year limited warranty and rates endurance at 1,200 TBW - twice the allowance of the 512 GB tier and enough for roughly 65 to 160 years of typical 20-50 GB daily writing. Coverage terminates at whichever limit arrives first, terabytes or years. Underneath those headline figures sits a full protection stack: hardware LDPC error correction, global wear leveling, end-to-end CRC data path protection, thermal throttling safeguards, and sudden power-loss protection noted in detailed reviews of the platform. AES-256 hardware encryption support is included, though reviewers caution it is not always enabled on retail units. No MTBF figure appears in the official product sheet.
Klevv C925G 2025 1 TB Specifications
| Category | Value |
|---|---|
| Capacity [?] | 1 TB |
| Interface [?] | M.2 4.0 x 4 |
| Controller [?] | Maxio Technology MAP1602-F3C |
| Memory type [?] | SK Hynix 238-L 4D TLC |
| DRAM [?] | No |
| Read speed (MB/s) [?] | 7400 |
| Write speed (MB/s) [?] | 6300 |
| Read IOPS [?] | 670000 |
| Write IOPS [?] | 980000 |
| Endurance (TBW) [?] | 1200 |
| MTBF (million hours) [?] | 2000000 |
| Warranty (years) [?] | 5 |
Verdict: Is the C925G 2025 Worth It in 2026?
The C925G 1TB earns its place as the default pick of the lineup: it pairs near-ceiling 7,400 MB/s reads with double the endurance of the smaller tier, all under a five-year warranty at a value price. Buyers running constant sustained-write workloads should still look at DRAM-equipped alternatives, because HMB designs eventually fall behind during endless transfers. Against the Lexar NM790 the choice is nearly a coin flip on internals, with KLEVV countering through its higher official endurance rating and pre-fitted graphene heatsink. For gaming rigs, general upgrades, and anyone wanting maximum specification per dollar at 1 TB, this drive belongs on the shortlist.
+ Pros
- 7,400 MB/s reads sit near the Gen4 ceiling
- 1,200 TBW endurance doubles the entry tier
- Five-year limited warranty across capacities
- Graphene-copper heatsink fitted at the factory
- Strong 4K latency reported by independent testers
- Cons
- Writes trail the 2 TB flagship by 200 MB/s
- DRAM-less design borrows system memory via HMB
- Sustained transfers slow after cache exhaustion
- Brand has thinner retail presence than major rivals
Buy this or similar SSD Storage:
Video Review
KLEVV CRAS C925G M.2 PCIe 4.0 SSD – Precision Cooling. Infinite Possibilities.
