# Kingston KC1000 240GB Review — Classic PCIe 3.0 NVMe with MLC NAND (2026)

The Kingston KC1000 240GB is one of the last mainstream consumer SSDs to use MLC NAND — a durability-focused PCIe 3.0 NVMe drive from an era before TLC became the default.

Quick answer: The Kingston KC1000 240GB is a relic from a time when MLC NAND was still viable in consumer SSDs, and that durability focus still gives it a distinctive edge. The 300 TBW endurance rating triples what TLC competitors offered at this capacity, and the Phison E7 controller delivers competent PCIe 3.0 performance for everyday tasks. But 240 GB is very limiting for modern use, and the 1,600 MB/s write speed is overshadowed by nearly every current-generation drive. Buyers who value longevity above all else might still find appeal here, but most users are better served by a modern 500 GB TLC drive with comparable endurance and significantly higher throughput. The Kingston KC2500 or WD Blue SN580 are stronger choices in 2026.

## Specifications

| Specification | Value |
| --- | --- |
| Capacity | 240 GB |
| Interface | M.2 or PCIe 3.0 x 4 |
| Controller | Phison PS5007-E7 |
| Memory type | Toshiba MLC |
| DRAM cache | Kingston 2 X 512MB |
| Sequential read | 2700 MB/s |
| Sequential write | 1600 MB/s |
| Random read IOPS | 290000 |
| Random write IOPS | 190000 |
| Endurance | 300 TBW |
| MTBF | 2 |
| Warranty | 5 years |

## Performance

The Kingston KC1000 240GB is rated at up to 2,700 MB/s sequential reads and 1,600 MB/s sequential writes over its PCIe 3.0 x4 interface. Random 4K performance peaks at 290,000 IOPS reads and 190,000 IOPS writes — respectable numbers for a drive of this generation, though well below what current PCIe 3.0 drives like the WD Blue SN580 can achieve. The MLC NAND is the KC1000's real advantage in sustained workloads. Unlike TLC drives that rely on a relatively small SLC cache and drop sharply once it fills, MLC flash handles prolonged sequential writes with less dramatic performance degradation. Reviewers at KitGuru and HardwareSecrets found the KC1000 maintained more consistent write speeds during large file transfers compared to TLC-based competitors of the same era. That said, the Phison E7 controller shows its age in mixed random workloads — latency is noticeably higher than on drives using newer controllers like the Phison E12 or Silicon Motion SM2262EN. For everyday desktop use, OS responsiveness, and game loading, the difference is marginal. For sustained content-creation workloads involving multi-gigabyte file copies, the MLC advantage becomes more visible. The 240 GB capacity naturally has the lowest write speeds in the KC1000 family — the 480 GB and 960 GB models reach 1,700 MB/s and higher.

## Endurance, TBW & Warranty

Kingston backs the KC1000 240GB with a five-year warranty, limited to 300 TBW (terabytes written). For a 240 GB drive, that 300 TBW figure is notably higher than what TLC competitors offered — the Samsung 960 EVO 250 GB, for instance, was rated at only 100 TBW. The MLC NAND's higher program/erase cycle endurance is the reason. At a typical 40 GB per day write workload, the 300 TBW endurance works out to roughly 20 years of use before the warranty limit is reached, which comfortably exceeds the five-year warranty period and the practical lifespan of most systems. Kingston's warranty is honoured through their global network of authorized distributors and retailers — RMA is handled via the point of purchase. The drive does not list an MTBF figure in Kingston's datasheet, which is common for consumer SSDs from this generation. The five-year warranty is straightforward and competitive, though it's worth noting that Kingston has since superseded the KC1000 with the KC2000 and KC3000 series, both using TLC NAND.

## Pros and Cons

**Pros:**

- MLC NAND for superior endurance
- 300 TBW rated lifespan
- 1 GB discrete DRAM cache
- 5-year manufacturer warranty
- Consistent sustained write performance
**Cons:**

- Only 240 GB capacity
- 1,600 MB/s writes slow by modern standards
- Phison E7 controller shows its age
- No heatsink variant available
- Superseded by newer Kingston models


## Verdict

The Kingston KC1000 240GB is a relic from a time when MLC NAND was still viable in consumer SSDs, and that durability focus still gives it a distinctive edge. The 300 TBW endurance rating triples what TLC competitors offered at this capacity, and the Phison E7 controller delivers competent PCIe 3.0 performance for everyday tasks. But 240 GB is very limiting for modern use, and the 1,600 MB/s write speed is overshadowed by nearly every current-generation drive. Buyers who value longevity above all else might still find appeal here, but most users are better served by a modern 500 GB TLC drive with comparable endurance and significantly higher throughput. The Kingston KC2500 or WD Blue SN580 are stronger choices in 2026.

## Frequently Asked Questions

### Does the Kingston KC1000 240GB have DRAM?

Yes, the KC1000 240GB includes 1 GB of discrete DRAM cache (two 512 MB Kingston packages). This was generous for a 240 GB drive and helps maintain consistent random I/O performance compared to DRAM-less designs. The DRAM cache stores the flash translation layer map, reducing latency during mixed workloads. Most modern budget drives have moved to HMB (host memory buffer) designs that borrow system RAM instead, but the KC1000's dedicated DRAM is a genuine advantage for sustained performance.

### Is the Kingston KC1000 240GB good for gaming?

It works as a gaming boot drive, but the 240 GB capacity is very limiting — a single modern AAA game can exceed 100 GB, leaving little room for the OS and multiple titles. The 1,600 MB/s write speed is also well below what current PCIe 3.0 and 4.0 drives offer, which means game installations and updates take noticeably longer. For gaming in 2026, a modern 1 TB NVMe like the WD Blue SN580 or Crucial P3 Plus offers more storage and faster load times at a similar or lower price.

### What is the TBW endurance of the Kingston KC1000 240GB?

Kingston rates the KC1000 240GB at 300 TBW (terabytes written). This is significantly higher than TLC-based competitors of the same capacity — the Samsung 960 EVO 250 GB was rated at only 100 TBW, for example. The MLC NAND flash cells can endure more program/erase cycles than TLC cells, which is the fundamental reason for the higher endurance rating. At 40 GB of writes per day, the drive would take roughly 20 years to reach its TBW limit.

### Is the Kingston KC1000 compatible with PS5?

No, the KC1000 does not meet Sony's PS5 storage expansion requirements. The PS5 requires a PCIe 4.0 NVMe M.2 drive with a minimum sequential read speed of 5,500 MB/s. The KC1000 is a PCIe 3.0 drive rated at 2,700 MB/s reads, which falls well short of that threshold. Additionally, the PS5 slot expects a 2280 or 22110 form factor with an integrated heatsink, and the KC1000 ships without one. It works fine in PS4 systems that accept standard 2.5-inch SATA SSDs with an enclosure, but not for PS5 internal expansion.

### Does the Kingston KC1000 need a heatsink?

The KC1000 does not ship with a heatsink, and Kingston did not offer a heatsink variant. The Phison E7 controller can run warm under sustained load, especially in the M.2 2280 form factor where airflow is limited. For desktop use with decent case ventilation, a heatsink is recommended but not essential. For laptops or compact builds, the drive should operate within thermal limits under normal workloads, but sustained large file transfers may trigger thermal throttling. Many motherboard M.2 slots now include built-in heatsink covers that would fit the KC1000.

### How does the Kingston KC1000 compare to the Samsung 960 EVO?

The KC1000 and Samsung 960 EVO 250 GB were direct competitors in 2017. The Samsung drive had slightly higher peak speeds (3,200 MB/s reads vs 2,700 MB/s), but the KC1000's MLC NAND gave it a significant endurance advantage — 300 TBW versus 100 TBW on the Samsung. The KC1000 also included 1 GB of DRAM compared to the 960 EVO's 512 MB. For sustained write workloads, the KC1000's MLC flash maintained speeds better after the SLC cache filled. Today, both drives are superseded, but the KC1000's endurance advantage remains relevant for write-heavy use cases.

### Is the Kingston KC1000 still worth buying in 2026?

For most buyers, no. Modern NVMe drives like the WD Blue SN580, Crucial P3 Plus, and Kingston's own KC2500 offer higher speeds, larger capacities, and comparable or better endurance at lower prices. The KC1000's MLC NAND is its sole distinctive advantage, but that durability edge is no longer enough to offset the slower controller and smaller capacity. The drive makes sense only for a very specific buyer — someone who prioritizes MLC flash longevity above all else and already has one at a steep discount.

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Last updated: 2026-05-17. Source: https://ssdrive.net/kingston-kc1000-240-gb