# Corsair MP600 Pro XT Hydro X 4TB — Massive Water-Cooled NVMe SSD (2026)

The Corsair MP600 Pro XT Hydro X 4TB combines flagship PCIe Gen4 bandwidth with custom-loop water cooling to sustain 7100 MB/s reads across a massive 4 TB of TLC storage.

Quick answer: The Corsair MP600 Pro XT Hydro X 4TB is the ultimate expression of PCIe 4.0 SSD cooling — a water-blocked, 4 TB TLC drive with 3,000 TBW endurance that eliminates thermal throttling for users who already run custom liquid cooling loops. It delivers identical peak speeds to the air-cooled variant but sustains them longer under heavy write loads. The requirement for a full custom loop limits its audience, and the premium price means you are paying for thermal engineering rather than raw performance gains. For builders with Hydro X infrastructure, it is a compelling completion piece.

## Specifications

| Specification | Value |
| --- | --- |
| Capacity | 4 TB |
| Interface | M.2 4.0 x 4 |
| Controller | Phison PS5018-E18 |
| Memory type | Micron 3D TLC |
| DRAM cache | 1GB DDR4 |
| Sequential read | 7100 MB/s |
| Sequential write | 6800 MB/s |
| Random read IOPS | 1000000 |
| Random write IOPS | 1200000 |
| Endurance | 3000 TBW |
| MTBF | 2000000 |
| Warranty | 5 years |

## Performance

Sequential bandwidth peaks at 7,100 MB/s read and 6,800 MB/s write — the ceiling of what PCIe 4.0 x4 can deliver. The Phison E18 controller leverages eight NAND channels and hardware LDPC error correction to push the Micron 176L TLC NAND to its limits. Random 4K performance of 1 million read and 1.2 million write IOPS ensures that everyday tasks like OS boot, application launch, and file indexing feel instantaneous.

The water cooling does not increase peak speeds beyond what the air-cooled MP600 Pro XT achieves. Its benefit is entirely in sustained performance. Under a prolonged sequential write workload, an air-cooled E18 drive typically reaches thermal throttling within minutes, dropping write speeds to protect the silicon. The Hydro X's water block keeps controller temperatures dramatically lower — independent tests of E18 water cooling show 20–30 °C reductions — meaning the drive sustains its rated 6,800 MB/s write speed for the full duration of the SLC cache window. For large video rendering exports or database workloads, this thermal consistency is the primary reason to choose the Hydro X over a conventionally cooled alternative.

## Endurance, TBW & Warranty

Corsair provides a five-year warranty on the MP600 Pro XT Hydro X 4TB, matching the coverage on the rest of the MP600 Pro XT lineup. The endurance rating is 3,000 TBW for this 4 TB capacity, which works out to roughly 1.6 TB of writes per day over the warranty period — substantial headroom for professional content creation and heavy desktop use. The warranty covers manufacturing defects in both the SSD PCB and the integrated Hydro X water block. Corsair's warranty terms explicitly exclude data loss, and damage caused by coolant leaks from a custom loop may void coverage, so proper loop testing and maintenance are essential. MTBF is not separately published for this SKU.

## Pros and Cons

**Pros:**

- 4 TB of Micron 176-layer TLC with 3,000 TBW endurance
- Water cooling eliminates E18 thermal throttling
- 7,100 MB/s read and 6,800 MB/s write speeds
- 1 million read and 1.2 million write IOPS
- Five-year warranty from Corsair
- Hydro X G1/4 fitting ecosystem compatibility
**Cons:**

- Requires complete custom water cooling loop
- Premium price over air-cooled 4 TB alternatives
- Peak speeds match air-cooled MP600 Pro XT
- Not compatible with PS5 M.2 expansion slot


## Verdict

The Corsair MP600 Pro XT Hydro X 4TB is the ultimate expression of PCIe 4.0 SSD cooling — a water-blocked, 4 TB TLC drive with 3,000 TBW endurance that eliminates thermal throttling for users who already run custom liquid cooling loops. It delivers identical peak speeds to the air-cooled variant but sustains them longer under heavy write loads. The requirement for a full custom loop limits its audience, and the premium price means you are paying for thermal engineering rather than raw performance gains. For builders with Hydro X infrastructure, it is a compelling completion piece.

## Frequently Asked Questions

### What is the TBW endurance rating of the 4TB Hydro X?

The 4 TB capacity is rated at 3,000 TBW (terabytes written) with a five-year warranty. This is double the 2 TB model's 1,400 TBW rating, reflecting the additional NAND dies that distribute write wear across more flash cells.

### Does water cooling increase the maximum speed of the drive?

No. Peak sequential speeds of 7,100 MB/s read and 6,800 MB/s write are identical to the air-cooled MP600 Pro XT. Water cooling improves sustained performance by preventing thermal throttling during prolonged write workloads, not by raising the theoretical maximum.

### Can I use the MP600 Pro XT Hydro X in a PS5?

No. The integrated Hydro X water block makes the drive physically incompatible with the PS5's M.2 expansion slot. For PS5 upgrades, choose an air-cooled M.2 2280 NVMe drive like the standard MP600 Pro XT with a low-profile heatsink.

### What controller does this drive use?

The Phison PS5018-E18 controller, a flagship PCIe 4.0 silicon with 12 nm process technology, eight NAND channels, hardware LDPC error correction, and support for up to 8 TB of NAND capacity.

### Do I need a full custom loop or can this work with an AIO?

A full custom loop is required. The Hydro X XM2 water block uses standard G1/4 fittings designed for open-loop water cooling with a pump, reservoir, and radiator. It cannot connect to AIO closed-loop coolers.

### How much DRAM cache does the 4TB model have?

The drive includes a DDR4 DRAM cache buffer. Corsair does not publish the exact DRAM size in its public specifications for this SKU, though E18-based drives typically use approximately 1 GB of DRAM per terabyte of NAND capacity.

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Last updated: 2026-05-23. Source: https://ssdrive.net/corsair-mp600-pro-xt-hydro-x-4-tb