KLEVV CRAS C910G
The 4TB capacity and PCIe 4.0 x4 interface deliver 5200 MB/s reads and 4800 MB/s writes, backed by TLC NAND and a DRAM cache for sustained performance. The built-in heatsink manages thermals during heavy workloads, and the 2800 TBW endurance rating supports long-term use. This drive suits workstation users who need large, reliable storage for video editing or 3D rendering, though its portable use is limited.
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Snapshot
The 30-Second Version
The KLEVV CRAS C910G 4TB scores 72.4 overall, with standout random performance at the 85th percentile and a hefty 2800 TBW endurance rating. Sequential speeds of 5200 MB/s read and 4800 MB/s write are only middle of the pack for Gen4. At 480 USD, it's a capacity and endurance play, not a speed demon.
Pros & Cons
Pros
- 4TB capacity at the 93rd percentile for storage space 94th
- 600K random write IOPS, a standout 85th percentile result 93rd
- 2800 TBW endurance rating, well above average for longevity 87th
- Built-in heatsink keeps thermals in check under load 75th
- DRAM cache included, no DRAM-less compromises
Cons
- 5200 MB/s sequential read trails top Gen4 drives by a wide margin
- 73rd percentile speed ranking, middle of the pack for PCIe 4.0
- Only one customer review in our database, weak social proof at 41st percentile
- 480 USD price tag is steep for the performance tier
- Portable use case scores just 18.7 out of 100
What owners think
The Word on the Street
The proof
Performance
Let's talk random performance first, because that's where this drive actually shines. 540K random read IOPS and 600K random write IOPS put the C910G at the 85th percentile in our database. That's a standout result, and it means the drive feels snappy when you're loading apps, scrubbing through timelines, or dealing with lots of small files. The DRAM cache is doing real work here.
Sequential speeds are more middle of the pack. 5200 MB/s read and 4800 MB/s write are respectable Gen4 numbers, but they land at the 73rd percentile. Drives like the Samsung 990 PRO and WD Black SN850X push past 7000 MB/s, so the C910G gives up roughly 2000 MB/s in raw throughput. For most real-world tasks you won't feel that gap, but large file transfers will take a bit longer. The TLC NAND and included heatsink help keep things stable under sustained load, which matters more than peak numbers for a 4TB work drive.
Specifications
Full Specifications
Drive
| Capacity | 4000 |
| Form Factor | M.2 2280 |
| Interface | PCIe 4.0 x4 |
| Protocol | NVMe |
| PCIe Generation | 4 |
| External | No |
Performance
| Sequential Read (MB/s) | 5200 |
| Sequential Write (MB/s) | 4800 |
| Random Read (IOPS) | 540000 |
| Random Write (IOPS) | 600000 |
Hardware
| NAND | TLC |
| DRAM Cache | Yes |
Reliability
| Endurance (TBW) | 2800 |
Features
| Heatsink | Yes |
vs Competition
Stacked against the Samsung 990 PRO and WD Black SN850X, the C910G gives up a lot of sequential speed. Both of those drives push past 7000 MB/s reads, while the KLEVV tops out at 5200 MB/s. That's a 73rd percentile speed ranking versus the top of the charts. But the C910G fights back on endurance, its 2800 TBW rating beats what you typically see from the 990 PRO at similar capacities. The Kingston Fury Renegade 4TB is probably the closest competitor in spirit, similar Gen4 speeds and capacity, but with stronger brand recognition and more customer reviews. The Seagate FireCuda 530R also offers better sequential performance if that's your priority. The KLEVV's real edge is the combination of 4TB capacity, high random IOPS, and that endurance rating, but you have to trust the spec sheet since there's barely any user feedback out there.
| Spec | KLEVV CRAS C910G | Samsung 9100 PRO | Western Digital WD Black SN850X | Crucial T500 | Kingston Fury Renegade SFYRDK/2000G | Seagate FireCuda 530R |
|---|---|---|---|---|---|---|
| Capacity | 4TB | 8TB | 4TB | 2TB | 2TB | 4TB |
| Form Factor | M.2 2280 | M.2 2280 | M.2 2280 | M.2 2280 | M.2 2280 | M.2 2280 |
| Interface | PCIe 4.0 x4 | PCIe 5.0 x4 | PCIe 4.0 x4 | PCIe 4.0 x4 | PCIe 4.0 x4 | PCIe 4.0 x4 |
| Seq Read | 5,200 MB/s | 14,800 MB/s | 7,300 MB/s | 7,400 MB/s | 7,300 MB/s | 7,400 MB/s |
| Nand Type | TLC | TLC | TLC | TLC | TLC | TLC |
| Dram Cache | true | true | true | true | true | false |
| Endurance | 2800 TBW | 4800 TBW | 2400 TBW | 1200 TBW | 2000 TBW | 5050 TBW |
| Compare | Compare | Compare | Compare | Compare |
| Product | Speed | Random | Feature | Capacity | Endurance | Social Proof |
|---|---|---|---|---|---|---|
| KLEVV CRAS C910G | 75.3 | 87.2 | 93.9 | 92.5 | 71.9 | 27.8 |
| Samsung 9100 PRO Compare | 99.1 | 99.8 | 99.8 | 98.1 | 85.6 | 95.4 |
| Western Digital WD Black SN850X Compare | 88.3 | 95.1 | 93.9 | 92.5 | 80.6 | 95.4 |
| Crucial T500 Compare | 93.7 | 96.4 | 99 | 78.3 | 82.6 | 95.4 |
| Kingston Fury Renegade SFYRDK/2000G Compare | 92.9 | 93.8 | 93.9 | 78.3 | 93.7 | 95.4 |
| Seagate FireCuda 530R Compare | 92.5 | 96.3 | 52.8 | 92.5 | 95.5 | 88 |
Price
Value & Pricing
At 480 USD, the C910G 4TB is asking a premium price for capacity and endurance rather than raw speed. You're paying roughly 12 cents per gigabyte, which isn't outrageous for a 4TB drive with DRAM and a heatsink, but it's hard to ignore that faster 4TB options exist in this price range. The 2800 TBW endurance rating does add real value if you're writing constantly, video editors and database folks will get their money's worth. Casual gamers who just want a big Steam library might find better price-per-performance elsewhere.
We started tracking prices for this product on Nov 8, 2026. The chart appears once we have more data.
Read more
Overview
The KLEVV CRAS C910G 4TB lands in our database with a 72.4 overall score, which is solid but not earth-shattering. The headline numbers are the 4TB capacity and the 2800 TBW endurance rating, both sitting at the 93rd and 72nd percentile respectively. That's a lot of room for games, video projects, or whatever digital hoard you're building, and the drive should survive years of heavy writes before calling it quits.
Sequential speeds top out at 5200 MB/s read and 4800 MB/s write, which puts it at the 73rd percentile for speed. Not the fastest Gen4 drive we've tested, but far from slow. The random IOPS story is better, 540K read and 600K write, landing at the 85th percentile. For a drive with a built-in heatsink and DRAM cache, it's positioned as a workhorse rather than a benchmark queen.
Common Questions
Q: What form factor is the KLEVV CRAS C910G?
It's a standard M.2 2280 drive, so it'll fit in most desktop motherboards and many laptops that support PCIe Gen4 NVMe drives. The built-in heatsink adds a bit of height, so check clearance if you're installing it under a motherboard shroud or in a slim laptop.
Q: How fast is the C910G compared to other Gen4 drives?
Sequential speeds top out at 5200 MB/s read and 4800 MB/s write, which puts it at the 73rd percentile in our database. Top Gen4 drives like the Samsung 990 PRO hit over 7000 MB/s. However, the C910G's random performance is much stronger, with 540K read and 600K write IOPS landing at the 85th percentile.
Q: Is the 2800 TBW endurance rating good?
Yes, 2800 TBW is well above average for a 4TB consumer drive and sits at the 72nd percentile in our database. That means you could write roughly 1.5TB per day for five years before hitting the rated limit. For heavy workloads like video editing or database use, that's a meaningful longevity advantage.
Who Should Skip This
Skip this drive if you're chasing maximum sequential throughput. The 5200 MB/s read speed lands at the 73rd percentile, which is fine but not competitive with the 7000+ MB/s leaders in the Gen4 space. If you're a gamer who just wants fast level loads and quick file transfers, the Samsung 990 PRO or WD Black SN850X will serve you better at similar prices. Also skip it if you need portability, the 18.7 out of 100 portable score tells you everything about how this drive fares outside a desktop with proper airflow. And if you're the type who likes to read dozens of reviews before buying, the single customer review in our database won't give you much confidence.
Verdict
The KLEVV CRAS C910G 4TB is a capable drive with a specific appeal. If you need massive capacity, strong random performance, and endurance that will outlast your next few system upgrades, it's worth a look. The 85th percentile random IOPS and 2800 TBW rating are genuinely impressive. But at 480 USD with sequential speeds that trail the Gen4 leaders by a significant margin, it's a tough sell for anyone chasing maximum throughput. The near-total lack of customer reviews doesn't help either. We'd recommend it for workstation users who value endurance and capacity over peak speed, but gamers and general users have better-rounded options at this price.
