# Mushkin Delta 2TB Review — High-Capacity Budget PCIe 4.0 QLC SSD (2026)

The Mushkin Delta 2TB is the mid-range capacity of Mushkin's QLC-based PCIe 4.0 SSD line, offering generous storage at a budget price point but with the inherent performance trade-offs of quad-level cell NAND.

Quick answer: The Mushkin Delta 2TB offers generous storage capacity at a budget price, but the combination of a first-gen PCIe 4.0 controller and QLC NAND limits its appeal. The 2TB capacity is useful for game libraries and media archives, and the 5-year warranty provides peace of mind. However, the QLC architecture's slow sustained writes make this a poor choice for write-heavy workflows. For users who primarily read data — gaming, media consumption, general desktop use — the Delta 2TB is adequate. But TLC-based drives like the WD Blue SN580 2TB or Mushkin's own Gamma 2TB deliver significantly better performance at a reasonable price premium.

## Specifications

| Specification | Value |
| --- | --- |
| Capacity | 2 TB |
| Interface | M.2 4.0 x 4 |
| Controller | Phison E16 |
| Memory type | 3D QLC |
| DRAM cache | 2GB DDR4 |
| Sequential read | 4975 MB/s |
| Sequential write | 3975 MB/s |
| Random read IOPS | 700000 |
| Random write IOPS | 650000 |
| Endurance | 800 TBW |
| MTBF | 1.8 |
| Warranty | 5 years |

## Performance

The Mushkin Delta 2TB is rated at up to 4,975 MB/s sequential reads and 3,975 MB/s sequential writes, with 700,000 IOPS random reads and 650,000 IOPS random writes. These numbers reflect the Phison E16 controller's capabilities on paper, but the QLC NAND tells a different story in practice.

The 4,975 MB/s read speed approaches the practical limit of the E16 controller and is adequate for any consumer workload. Game loading, application launches, and file access feel responsive. The 3,975 MB/s write speed is the burst figure achieved while the SLC cache is active — and on a QLC drive, the cache is notably smaller than on TLC equivalents.

Once the SLC cache exhausts during sustained writes, QLC direct-write speeds typically fall to 80–150 MB/s on Phison E16 platforms. This is roughly one-twentieth of the burst write speed and slower than a mechanical hard drive. Transferring a 100 GB file will start fast and then grind to a halt once the cache fills. For users who regularly move large files, edit video, or run database workloads, this bottleneck is a genuine concern.

The 2TB capacity does offer a larger absolute SLC cache than the 1TB model (since the cache scales with total capacity), meaning it takes longer to fill. But the fundamental QLC limitation remains: sustained writes collapse after the buffer depletes.

Tom's Hardware's review of the Delta series rated it 2.5 out of 5, calling it "Mediocrity Defined." The E16 controller's first-gen PCIe 4.0 design, combined with QLC NAND's inherent write-speed limitations, produces a drive that offers the connectivity of PCIe 4.0 without the performance that interface enables.

## Endurance, TBW & Warranty

Mushkin covers the Delta 2TB with a 5-year limited warranty. The endurance rating is listed at 800 TBW in the source data — the same figure as the 1TB model, which is atypical since larger-capacity drives usually have proportionally higher TBW ratings. At 800 TBW, you could write roughly 438 GB per day across the five-year warranty period. For a typical desktop workload of 20–50 GB per day, the drive would last 44 to 110 years. QLC NAND's endurance characteristics mean that heavy write users should monitor SMART health data periodically. The 5-year warranty is generous for a QLC drive — many QLC SSDs carry only 3-year coverage. Mushkin handles warranty claims directly as a retail brand.

## Pros and Cons

**Pros:**

- 2TB capacity for large game and media libraries
- 5-year limited warranty
- AES 256-bit hardware encryption
- Competitive pricing per gigabyte thanks to QLC NAND
**Cons:**

- QLC NAND — very slow sustained writes after SLC cache fills
- Phison E16 is a superseded first-gen PCIe 4.0 controller
- Outperformed by TLC-based PCIe 3.0 drives in real-world use
- 800 TBW seems low for a 2TB drive


## Verdict

The Mushkin Delta 2TB offers generous storage capacity at a budget price, but the combination of a first-gen PCIe 4.0 controller and QLC NAND limits its appeal. The 2TB capacity is useful for game libraries and media archives, and the 5-year warranty provides peace of mind. However, the QLC architecture's slow sustained writes make this a poor choice for write-heavy workflows. For users who primarily read data — gaming, media consumption, general desktop use — the Delta 2TB is adequate. But TLC-based drives like the WD Blue SN580 2TB or Mushkin's own Gamma 2TB deliver significantly better performance at a reasonable price premium.

## Frequently Asked Questions

### Is the Mushkin Delta 2TB good for gaming?

Yes, the Mushkin Delta 2TB works well for gaming in read-heavy scenarios. The 2TB capacity holds 20+ modern games, and game load times from QLC NAND are comparable to TLC since loading is a read operation. However, installing or updating multiple large games simultaneously will slow down considerably once the SLC cache exhausts. For a primary gaming drive, TLC-based alternatives like the WD Blue SN580 2TB deliver better all-around performance.

### Does the Mushkin Delta 2TB have DRAM?

The available information on DRAM for the Mushkin Delta 2TB is unclear. The source database lists DRAM as 'n/a', while the Phison E16 reference design typically includes a DRAM cache. Mushkin may have used a DRAM-less variant to reduce costs. If DRAM-less, the drive likely uses HMB (Host Memory Buffer), which provides adequate performance for everyday workloads but slower random writes compared to DRAM-equipped drives.

### What is the TBW endurance of the Mushkin Delta 2TB?

The source data lists the Mushkin Delta 2TB at 800 TBW, covered by a 5-year limited warranty. This is the same endurance rating as the 1TB model, which is unusual — typically, larger capacities have proportionally higher TBW. For a 2TB QLC drive, one might expect 1,200–1,600 TBW. The actual endurance may differ from the listed figure. At 800 TBW, you could write roughly 438 GB daily for five years before reaching the limit. Most users generating 20–50 GB per day will far outlast the warranty.

### Is the Mushkin Delta 2TB compatible with the PS5?

The Mushkin Delta 2TB does not meet Sony's PS5 expansion requirements. Sony mandates a minimum 5,500 MB/s sequential read speed, and the Delta is rated at 4,975 MB/s — below the threshold. Additionally, the QLC NAND's slow sustained writes would struggle with PS5 game installations. For PS5 use, choose a TLC-based PCIe 4.0 drive rated at 5,500 MB/s or higher.

### How does the Mushkin Delta 2TB compare to the Gamma 2TB?

The Mushkin Gamma 2TB is a significantly superior drive. It uses the newer Phison E18 controller with TLC NAND, achieving 7,175/6,800 MB/s — far faster than the Delta's 4,975/3,975 MB/s. The Gamma's TLC NAND provides higher endurance (1,400 TBW vs 800 TBW), larger SLC cache, and dramatically faster sustained writes. The Delta's only advantage is potentially lower pricing. For any workload beyond light desktop use, the Gamma is the clear recommendation.

### Does the Mushkin Delta 2TB need a heatsink?

No, the Mushkin Delta 2TB does not strictly need a heatsink. The Phison E16 controller generates less heat than newer designs, and QLC NAND produces relatively little thermal output. In most desktop motherboards with basic M.2 ventilation, the drive stays within safe temperatures. If your motherboard includes an M.2 heatsink, using it is good practice but not essential for this drive.

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Last updated: 2026-05-23. Source: https://ssdrive.net/mushkin-delta-2-tb