# Klevv CRAS C925 1TB: The Sweet Spot of the Lineup (2026)

At 1 TB, the Klevv CRAS C925 hits the sweet spot of the DRAM-less PCIe 4.0 lineup, enough capacity for a real game library without giving up its class-leading endurance rating.

Quick answer: The Klevv CRAS C925 1TB makes sense for anyone who wants a PCIe 4.0 drive with real day-to-day capacity and cares more about long-term endurance than chart-topping benchmarks; it's a solid fit for a primary laptop drive, a Mini PC, or a PS5 storage upgrade with room for a real game library. Buyers who move huge files constantly, like 4K video editors working directly off the drive, may still want a faster DRAM-equipped model, since the C925 tops out around 6,300 MB/s writes rather than leading its class. If outright sustained write speed matters more than endurance headroom, the WD Black SN770 is worth comparing at a similar price. Overall this is a dependable mid-capacity pick: not the fastest PCIe 4.0 SSD at its price, but one of the more durable ones, backed by a genuinely useful 5-year warranty.

## Specifications

| Specification | Value |
| --- | --- |
| Capacity | 1 TB |
| Interface | M.2 4.0 x 4 |
| Controller | Maxio MAP1602 |
| Memory type | TLC |
| DRAM cache | No |
| Sequential read | 7400 MB/s |
| Sequential write | 6300 MB/s |
| Random read IOPS | 670000 |
| Random write IOPS | 980000 |
| Endurance | 1200 TBW |
| MTBF | 2000000 |
| Warranty | 5 years |

## Performance

The 1 TB Klevv CRAS C925 is rated for up to 7,400 MB/s sequential reads and 6,300 MB/s sequential writes, with up to 670,000 IOPS on random reads and 980,000 IOPS on random writes, identical random-IOPS figures to the 500 GB model since both use the same controller configuration. The 2 TB model edges ahead on writes at 6,500 MB/s and pulls further ahead on IOPS (700K/1000K) thanks to greater NAND parallelism.

Like nearly every DRAM-less, HMB-based drive, the C925 leans on SLC caching to hit its peak sequential-write number; sustained transfers that exceed the cache fall back toward the NAND's native TLC write speed. At 1 TB the cache is larger than on the 500 GB model, so this capacity holds its peak write speed over a bigger chunk of any large transfer before slowing down. For day-to-day use, booting Windows, loading games, general file work, the drive's read speed and random IOPS matter more than sustained sequential writes, and there it performs in line with other mainstream PCIe 4.0 NVMe drives. Independent reviewers have generally found the C925 line delivers competent, if unremarkable, real-world performance for its price bracket rather than class-leading numbers.

## Endurance, TBW & Warranty

Klevv rates the 1 TB CRAS C925 at 1,200 TBW and backs it with a 5-year limited warranty, generous for a budget-tier DRAM-less drive, and one of the specific things Tom's Hardware called out as a genuine standout in its review. At a realistic 20-30 GB per day write workload, 1,200 TBW works out to well over a century before the drive reaches its rated endurance limit, far beyond both the warranty period and the practical lifespan of the rest of the PC around it. Klevv also lists a 2,000,000-hour MTBF figure, though that's a population-level statistical average across many drives rather than a promise about any single unit's lifespan. Warranty service runs through Klevv's regional RMA process rather than the retailer directly, so keep your purchase receipt on hand.

## Pros and Cons

**Pros:**

- 1,200 TBW endurance, high for the price
- 5-year manufacturer warranty
- 7,400 MB/s sequential reads on PCIe 4.0
- Single-sided M.2 2280 fits laptops and PS5
- AES 256-bit hardware encryption included
- 1TB capacity fits a real game library
**Cons:**

- Write speed trails the 2TB model
- No DRAM cache, relies on HMB
- No heatsink included out of the box
- Random IOPS tie the smaller 500GB model


## Verdict

The Klevv CRAS C925 1TB makes sense for anyone who wants a PCIe 4.0 drive with real day-to-day capacity and cares more about long-term endurance than chart-topping benchmarks; it's a solid fit for a primary laptop drive, a Mini PC, or a PS5 storage upgrade with room for a real game library. Buyers who move huge files constantly, like 4K video editors working directly off the drive, may still want a faster DRAM-equipped model, since the C925 tops out around 6,300 MB/s writes rather than leading its class. If outright sustained write speed matters more than endurance headroom, the WD Black SN770 is worth comparing at a similar price. Overall this is a dependable mid-capacity pick: not the fastest PCIe 4.0 SSD at its price, but one of the more durable ones, backed by a genuinely useful 5-year warranty.

## Frequently Asked Questions

### Is the Klevv CRAS C925 1TB good for gaming?

Yes. The 1 TB CRAS C925 pairs 7,400 MB/s sequential reads and 670,000 random-read IOPS with enough capacity for a real game library, roughly 15-20 modern AAA titles depending on size. That combination makes it a solid PCIe 4.0 choice for a dedicated games drive on desktop or as a laptop upgrade. Load times track closely with other PCIe 4.0 NVMe drives using similar controllers, so you won't see a dramatic jump over a comparable rival, but you also won't be capacity-limited the way a 500 GB drive can be.

### Is the Klevv CRAS C925 1TB compatible with the PS5?

Yes. It meets Sony's published PS5 M.2 SSD requirements: PCIe 4.0 NVMe interface, sequential read speed above the 5,500 MB/s minimum (this drive is rated at 7,400 MB/s), and a compact single-sided design that fits within Sony's size limits even without an added heatsink. Klevv doesn't appear on Sony's official compatibility list by name, but the specifications line up with what the PS5 requires, and Klevv itself markets the C925 line as a PS5-ready upgrade.

### Does the Klevv CRAS C925 have a DRAM cache?

No, the 1 TB CRAS C925 is a DRAM-less design. Instead of an onboard DRAM chip, the Maxio MAP1602 controller uses Host Memory Buffer (HMB) technology, borrowing a small slice of the host system's RAM to store its mapping tables. This keeps costs down and lets Klevv offer the drive's 1,200 TBW endurance rating and 5-year warranty at a lower price point than a DRAM-equipped alternative, at some cost to sustained random-write consistency under very heavy workloads.

### What is the TBW endurance of the 1TB CRAS C925?

The 1 TB model is rated at 1,200 TBW, the middle figure in the three-capacity C925 lineup; the 500 GB version is rated at 600 TBW and the 2 TB version at 2,400 TBW, scaling roughly linearly with capacity. At a typical desktop or laptop workload of 20-30 GB written per day, 1,200 TBW would take well over a century to reach, so endurance is not a practical concern for mainstream use; it mainly matters for buyers doing constant heavy writes.

### Is the 1TB CRAS C925 slower than the 2TB version?

Yes, modestly. The 1 TB model shares the same 7,400 MB/s sequential read rating as the 2 TB version, but its sequential write speed tops out at 6,300 MB/s versus 6,500 MB/s, and its random IOPS are also slightly lower (670K/980K versus 700K/1000K). The gap comes from having fewer NAND dies to write across in parallel than the larger capacity. For typical desktop use the difference is barely noticeable, but it shows up more in large sustained file transfers.

### Does the Klevv CRAS C925 need a heatsink?

Not for typical desktop or laptop use. The C925 ships as a bare single-sided M.2 2280 drive without a heatsink, and its DRAM-less design and moderate power draw mean it doesn't run especially hot under normal workloads. A motherboard M.2 heatsink or PS5 heat spreader can still help during long sustained-write sessions, but it isn't a requirement the way it can be on higher-power flagship PCIe 4.0 or PCIe 5.0 drives.

### How does the Klevv CRAS C925 compare to the WD Black SN770?

Both are DRAM-less PCIe 4.0 NVMe drives aimed at mainstream buyers, with broadly similar sequential read speeds at the 1 TB capacity. The CRAS C925's main advantage is endurance; its 1,200 TBW rating and 5-year warranty are generous for this price tier, while the SN770 typically ships with a shorter warranty window. The SN770 has a slight edge in peak write speed and a longer independent testing track record. For a buyer prioritizing longevity and warranty coverage over the last few hundred MB/s, the C925 is the stronger pick.

---

Last updated: 2026-08-28. Source: https://ssdrive.net/klevv-cras-c925-1-tb