# Four Terabytes of Gen 5 NVMe: For the Library That Never Shrinks (2026)

The Corsair MP700 PRO 4TB brings the full speed of the Phison PS5026-E26 controller and Micron B58R TLC NAND to four terabytes of fast PCIe 5.0 x4 storage, with 8GB of DDR4-4266 cache and 3,000 TBW endurance.

Quick answer: The Corsair MP700 PRO 4TB is purpose-built for storage-intensive use cases where a 2TB primary drive is not enough and speed cannot be sacrificed to a secondary HDD or SATA SSD. The full MP700 PRO sequential speed, the highest random IOPS in the range at 1.7M reads, 8GB of DDR4 cache, and 3,000 TBW endurance make it a serious option for both large game libraries and video or photo production workflows. The trade-off is price — the 4TB carries a significant premium over the 2TB — but for a build where every title in the library needs to load at Gen 5 speeds, the premium is the point.

## Specifications

| Specification | Value |
| --- | --- |
| Capacity | 4 TB |
| Interface | M.2 5.0 |
| Controller | Phison PS5026-E26 8 Channel |
| Memory type | Micron 232-L TLC |
| DRAM cache | Yes |
| Sequential read | 12400 MB/s |
| Sequential write | 11800 MB/s |
| Random read IOPS | 1700000 |
| Random write IOPS | 1600000 |
| Endurance | 3000 TBW |
| MTBF | 2000000 |
| Warranty | 5 years |

## Performance

Corsair rates the MP700 PRO 4TB at 12,400 MB/s sequential read and 11,800 MB/s sequential write, matching the 2TB on sequential metrics. Random performance is higher than any other MP700 PRO variant: 1.7 million read IOPS and 1.6 million write IOPS at QD32. The 4TB's larger NAND array operates with greater internal parallelism, which drives the improved random read figure.

The 8GB DDR4-4266 DRAM cache is the largest in the MP700 PRO range, and its size matters most under random access workloads across the full 4TB address space. A larger DRAM map means fewer cache misses when accessing data spread across the drive's full capacity — relevant for any workload that maintains a large active working set.

Sustained sequential write performance remains strong through the SLC write cache, which is proportionally larger on a 4TB TLC drive than on smaller capacities. For content ingest workflows that move hundreds of gigabytes in a session, the SLC cache provides a longer window of peak-speed operation before the drive transitions to native TLC write speeds.

## Endurance, TBW & Warranty

Corsair covers the MP700 PRO 4TB with a five-year limited warranty and a 3,000 TBW endurance rating — the highest in the MP700 PRO lineup. At 3,000 TBW on the 4TB model, a video editor writing 100GB daily would project more than 30 years of endurance before reaching the rated threshold. Even under heavier professional ingest workloads of 200GB daily, the drive projects over 15 years of rated life. The TBW scales at approximately 700–750 TBW per terabyte across the range. MTBF is rated at 2,000,000 hours. Corsair's warranty is processed through their website with RMA support in most regions.

## Pros and Cons

**Pros:**

- 12,400 MB/s sequential read and 11,800 MB/s write — full MP700 PRO rated speed at 4TB
- 1.7 million read IOPS — highest random read performance in the MP700 PRO lineup
- 8GB DDR4-4266 DRAM cache for efficient large random-access workloads across 4TB
- 3,000 TBW endurance — highest in the range and sufficient for professional write workloads
- 5-year warranty with 2,000,000-hour MTBF
- Eliminates the need for a secondary drive in most gaming and creative workstation builds
**Cons:**

- Significant price premium over the 2TB variant
- No heatsink included — 4TB drives generate substantial heat under sustained PCIe 5.0 loads
- Crucial T705 4TB achieves 14,100 MB/s reads at a higher but comparable price tier
- PCIe 5.0 x4 M.2 platform required to access rated performance
- 4TB capacity adds weight to the price consideration for users whose library fits in 2TB


## Verdict

The Corsair MP700 PRO 4TB is purpose-built for storage-intensive use cases where a 2TB primary drive is not enough and speed cannot be sacrificed to a secondary HDD or SATA SSD. The full MP700 PRO sequential speed, the highest random IOPS in the range at 1.7M reads, 8GB of DDR4 cache, and 3,000 TBW endurance make it a serious option for both large game libraries and video or photo production workflows. The trade-off is price — the 4TB carries a significant premium over the 2TB — but for a build where every title in the library needs to load at Gen 5 speeds, the premium is the point.

## Frequently Asked Questions

### How does the 4TB MP700 PRO differ from the 2TB in performance?

Sequential speeds are identical: 12,400 MB/s read and 11,800 MB/s write on both models. The difference is in random IOPS and DRAM cache. The 4TB reaches 1.7 million read IOPS versus 1.5 million on the 2TB, and carries 8GB of DDR4-4266 cache versus 4GB. The higher IOPS and larger cache matter most under random access workloads across the full drive capacity — large game worlds, open-world streaming, and large media project libraries.

### Is 4TB of fast NVMe necessary for gaming?

It depends on how many games you keep installed. A library of 20–25 modern AAA titles — each running 80–150GB — can push past 2TB once the OS, applications, and other software are included. The 4TB removes that ceiling, allowing the entire library to live on fast Gen 5 NVMe. For players who maintain a rotating library by uninstalling and reinstalling titles frequently, a 2TB is sufficient. For players who want every installed game to load at full speed without management overhead, the 4TB is the right configuration.

### What is the TBW endurance for the Corsair MP700 PRO 4TB?

Corsair rates the MP700 PRO 4TB at 3,000 TBW. This is the highest endurance figure in the MP700 PRO range, scaling at approximately 700–750 TBW per terabyte of capacity. At a professional daily write rate of 100–200GB, 3,000 TBW projects to 15–30 years of operational life before reaching the threshold — well beyond the five-year warranty period.

### Does the MP700 PRO 4TB include a heatsink?

No. The base 4TB ships without a heatsink, and cooling is more important at this capacity than at lower ones. A 4TB NAND array is physically larger and operates with more active dies simultaneously, which increases controller and NAND temperatures under sustained load. A motherboard M.2 heatsink fitted to the slot is the minimum recommendation. Corsair sells a 4TB variant with a factory air cooler for users who prefer a matched configuration from the start.

### How does the MP700 PRO 4TB compare to the Crucial T705 4TB?

The Crucial T705 4TB is rated at 14,100 MB/s sequential read and 12,600 MB/s write — faster than the MP700 PRO's 12,400/11,800 MB/s. Both drives use the Phison E26 controller with Micron B58R TLC NAND, with the T705 achieving higher peak speeds through its NAND and firmware tuning. The T705 typically carries a higher retail price. For most workloads the difference is modest in real-world use, and the MP700 PRO 4TB is the value option within the Gen 5 4TB tier.

### Is the MP700 PRO 4TB suitable for video editing and photography?

Yes, it is one of the better Gen 5 options for video and photo production work. The 11,800 MB/s sequential write speed handles fast camera media ingest without throttling. The 1.6 million write IOPS and 8GB DRAM cache manage the mixed read/write patterns of active editing — timeline scrubbing, proxy reads, cache writes, and export operations running concurrently. The 4TB capacity accommodates several large active projects simultaneously without requiring a secondary drive for overflow.

### What platforms support the MP700 PRO 4TB at full speed?

Full 12,400 MB/s performance requires a PCIe 5.0 x4 M.2 slot. Compatible platforms include Intel 12th generation (Alder Lake) and later processors on Z790, Z890, or equivalent chipset boards with PCIe 5.0 M.2 enabled; and AMD Ryzen 7000 and Ryzen 9000 series processors on X670E, X870, or X870E motherboards. In a PCIe 4.0 x4 slot the drive operates at that slot's bandwidth ceiling, delivering performance comparable to a fast Gen 4 drive.

### What warranty does the Corsair MP700 PRO 4TB carry?

Corsair provides a five-year limited warranty on the MP700 PRO 4TB. The endurance threshold is 3,000 TBW, and the MTBF rating is 2,000,000 hours. The warranty covers manufacturing defects and drive failure within the rated endurance threshold, with RMA processing available through Corsair's official website.

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Last updated: 2026-08-17. Source: https://ssdrive.net/corsair-mp700-pro-4-tb