# Corsair MP600 Pro XT 1TB -- Phison E18 PCIe 4.0 NVMe SSD Review (2026)

The Corsair MP600 Pro XT 1 TB strips the LPX heatsink to deliver identical Phison E18 PCIe 4.0 throughput at a lower price, making it one of the best-value Gen4 flagships for desktop builders.

Quick answer: The 1 TB MP600 Pro XT is the desktop builder's LPX — identical E18 performance without the factory heatsink tax. If your motherboard has a capable M.2 cover, the Pro XT gives you the same 7,100/6,800 MB/s throughput for less money. The 700 TBW endurance is ample for gaming and general productivity. Buyers needing PS5 compatibility should step up to the LPX for the guaranteed-fit heatsink.

## Specifications

| Specification | Value |
| --- | --- |
| Capacity | 1 TB |
| Interface | M.2 4.0 x 4 |
| Controller | Phison PS5018-E18 |
| Memory type | 3d TLC |
| DRAM cache | 2GB DDR4 |
| Sequential read | 7100 MB/s |
| Sequential write | 6800 MB/s |
| Random read IOPS | 1000000 |
| Random write IOPS | 1200000 |
| Endurance | 700 TBW |
| MTBF | 2000000 |
| Warranty | 5 years |

## Performance

The 1 TB Pro XT matches the LPX on every throughput metric: 7,100/6,800 MB/s sequential and up to 1M/1.2M read/write IOPS. The E18 pseudo-SLC cache absorbs roughly 150-200 GB of burst writes at full speed before transitioning to native TLC speeds around 1,500 MB/s. Real-world gaming load times are indistinguishable from any PCIe 4.0 flagship.

## Endurance, TBW & Warranty

Corsair covers the Pro XT 1 TB with a five-year warranty limited by 700 TBW, equivalent to about 384 GB/day over five years. The 2 TB model carries 1,400 TBW and the 4 TB reaches 3,000 TBW. Corsair RMA support is well-regarded.

## Pros and Cons

**Pros:**

- 7,100/6,800 MB/s -- full Phison E18 throughput
- Single-sided PCB -- fits thin laptops
- Typically cheaper than LPX with identical performance
- 700 TBW endurance with 5-year warranty
- Excellent value for desktop builders with M.2 covers
**Cons:**

- No factory heatsink -- requires motherboard M.2 cover
- Not PS5-ready without third-party heatsink
- Slightly slower than PCIe 5.0 alternatives at similar pricing


## Verdict

The 1 TB MP600 Pro XT is the desktop builder's LPX — identical E18 performance without the factory heatsink tax. If your motherboard has a capable M.2 cover, the Pro XT gives you the same 7,100/6,800 MB/s throughput for less money. The 700 TBW endurance is ample for gaming and general productivity. Buyers needing PS5 compatibility should step up to the LPX for the guaranteed-fit heatsink.

## Frequently Asked Questions

### How is the Pro XT different from the LPX?

The only difference is the heatsink. The LPX has a pre-installed low-profile aluminium heatsink designed for PS5 clearance. The Pro XT is a bare M.2 2280 drive — identical controller, NAND, DRAM, and throughput. Choose the LPX for PS5 or systems without M.2 covers; choose the Pro XT for desktop builds with motherboard heatsinks and save money.

### What is the TBW of the 1TB Pro XT?

Rated for 700 TBW, equivalent to writing roughly 384 GB/day over the five-year warranty period. At typical gaming write rates of 15-20 GB/day, this spans 96-128 years.

### Does the Pro XT thermal throttle?

Under sustained write workloads the E18 controller can reach throttling thresholds without airflow. In a desktop with a motherboard M.2 cover and case airflow, the Pro XT stays within safe temperatures. For heavy sustained writes, ensure the M.2 slot has some airflow.

### How does it compare to the Samsung 990 Pro 1TB?

The 990 Pro leads on peak reads (7,450 vs 7,100 MB/s) and IOPS, but both drives load games identically. The 990 Pro is more power-efficient. At similar pricing, the 990 Pro edges ahead; when the Pro XT is cheaper, it is the better value.

### Can I add my own heatsink for PS5 use?

Yes — any third-party M.2 heatsink that fits within the PS5 clearance envelope (11.25 mm max height) works. The LPX exists specifically to eliminate this step.

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Last updated: 2026-05-23. Source: https://ssdrive.net/corsair-mp600-pro-xt-1-tb