# MyDigitalSSD BPX Pro 240GB SSD — In-Depth Review & Specs (2026)

The MyDigitalSSD BPX Pro 240GB is the entry-level capacity in MyDigitalSSD's flagship Phison E12 line. Despite its modest 240GB footprint, it carries the same 8-channel Phison PS5012-E12 controller and dedicated DRAM cache as its larger siblings. The smaller capacity does constrain sequential write throughput — 1,100 MB/s versus the 3,100 MB/s of the 960GB model — but the 3,400 MB/s read speed and full DRAM-equipped latency profile remain intact. This review examines what the 240GB BPX Pro offers as an OS-only NVMe drive and where the capacity-limited write performance matters in practice.

Quick answer: The MyDigitalSSD BPX Pro 240GB is an interesting value proposition: it pairs a flagship-class Phison E12 controller with dedicated DRAM at an entry-level capacity and price. The 3,400 MB/s read speed means it boots and loads as fast as any PCIe 3.0 NVMe drive, and the DRAM cache means it handles mixed workloads without the latency penalties of DRAM-less alternatives. The 1,100 MB/s write ceiling is the tradeoff for the 240GB capacity, but for a pure OS-and-applications drive in a budget build — where capacity is secondary to responsiveness and reliability — it makes a compelling case against DRAM-less budget competitors that cost the same. If you need capacity, step up to the 480GB or 960GB models; if you need a responsive, DRAM-equipped boot drive at the lowest possible entry price, the BPX Pro 240GB delivers where it counts.

## Specifications

| Specification | Value |
| --- | --- |
| Capacity | 256 GB |
| Interface | M.2 3.0 x 4 |
| Controller | Phison PS5012-E12 |
| Memory type | Toshiba TLC |
| DRAM cache | SK Hynix DDR3 or DDR4 |
| Sequential read | 3400 MB/s |
| Sequential write | 1100 MB/s |
| Random read IOPS | 200000 |
| Random write IOPS | 240000 |
| Endurance | 380 TBW |
| MTBF | 2000000 |
| Warranty | 5 years |

## Performance

Rated sequential throughput is 3,400 MB/s read and 1,100 MB/s write. The read speed is full-fat E12 — among the fastest PCIe 3.0 x4 reads available — and means Windows boots, application launches, and game level loads complete as fast as any Gen3 NVMe drive regardless of capacity. The write speed is where the 240GB capacity constrains things: with only one or two NAND dies per channel, sequential writes top out at roughly one-third of what the same controller delivers at 960GB.

In practice, this write-speed asymmetry has limited real-world impact for the OS-drive use case the 240GB targets. Windows boots and application launches are overwhelmingly read-dominated. Game installs from Steam or Epic hit the download speed limit (gigabit internet is ~125 MB/s) long before the drive's 1,100 MB/s write ceiling. The scenario where you notice the write limit is copying large files from another NVMe drive — a 100GB game folder takes roughly 90 seconds instead of 30 seconds with a higher-capacity E12 drive. For a pure OS-and-applications drive that rarely sees bulk writes, the 240GB BPX Pro delivers the full E12 read experience at a budget price.

The DRAM cache keeps random I/O latency low and consistent. Unlike DRAM-less HMB designs that show latency spikes under mixed workloads, the BPX Pro maintains its composure whether you're installing Windows updates in the background while working or running a virus scan alongside your usual applications. For a boot drive where unpredictable mixed workloads are the norm, dedicated DRAM is a genuine advantage over budget HMB alternatives.

## Endurance, TBW & Warranty

MyDigitalSSD backs the BPX Pro 240GB with a 5-year limited warranty and a 380 TBW endurance rating — roughly 0.87 drive-writes-per-day over the warranty period, which is generous for a 240GB drive. The warranty is tied to the original purchaser and does not cover data recovery.

## Pros and Cons

**Pros:**

- 3,400 MB/s read — full-fat Phison E12 read performance at entry-level price
- Dedicated DRAM cache — consistent mixed-workload latency, no HMB compromises
- Phison PS5012-E12 — proven 8-channel flagship platform
- 380 TBW endurance — 0.87 DWPD, generous for a 240GB drive
- Single-sided M.2 2280 — universal compatibility
- 5-year warranty — matching premium-drive coverage terms
**Cons:**

- 1,100 MB/s write — limited by NAND parallelism at 240GB capacity
- 240GB is tight for OS plus a game library — best as OS-only drive
- No hardware encryption (TCG Opal / Pyrite)
- E12 runs warm at higher capacities; 240GB is cooler but still needs airflow
- Limited retail availability vs. major brands
- Write speed gap vs. 480GB/960GB models is large for bulk file transfers


## Verdict

The MyDigitalSSD BPX Pro 240GB is an interesting value proposition: it pairs a flagship-class Phison E12 controller with dedicated DRAM at an entry-level capacity and price. The 3,400 MB/s read speed means it boots and loads as fast as any PCIe 3.0 NVMe drive, and the DRAM cache means it handles mixed workloads without the latency penalties of DRAM-less alternatives. The 1,100 MB/s write ceiling is the tradeoff for the 240GB capacity, but for a pure OS-and-applications drive in a budget build — where capacity is secondary to responsiveness and reliability — it makes a compelling case against DRAM-less budget competitors that cost the same. If you need capacity, step up to the 480GB or 960GB models; if you need a responsive, DRAM-equipped boot drive at the lowest possible entry price, the BPX Pro 240GB delivers where it counts.

## Frequently Asked Questions

### Does the BPX Pro 240GB have DRAM cache?

Yes. The BPX Pro uses the Phison PS5012-E12 controller with dedicated DRAM — typically SK Hynix DDR3 or DDR4 — for the flash translation layer. Unlike DRAM-less HMB designs, the BPX Pro maintains consistent mixed-workload latency regardless of system RAM usage.

### Why is the write speed only 1,100 MB/s on the 240GB model?

The Phison E12 controller has 8 NAND channels, but at 240GB there are fewer NAND dies per channel. Sequential write speed depends on NAND die-level parallelism — with fewer dies, the controller has less opportunity to interleave writes across dies. Read speed is unaffected and remains at the full 3,400 MB/s. The 480GB and 960GB models have more dies per channel and achieve higher write speeds (2,100 and 3,100 MB/s respectively).

### Is 240GB enough for a boot drive?

Yes, if you use it as a dedicated OS-and-applications drive. Windows 10/11 with a typical office suite, browser, and productivity applications fits comfortably in 240GB with room for updates and temporary files. For users who also want to store a large game library, the 480GB or 960GB models are a better fit.

### What is the endurance rating of the BPX Pro 240GB?

The BPX Pro 240GB is rated for 380 TBW (terabytes written) over its 5-year warranty period — roughly 0.87 drive-writes-per-day. This is generous for a 240GB-class drive and reflects the Phison E12 platform's robust write amplification management.

### What controller does the BPX Pro use?

The BPX Pro uses the Phison PS5012-E12, an 8-channel PCIe 3.0 x4 NVMe controller with a dedicated DRAM interface. This is the same controller platform used in premium drives like the Corsair MP510, Sabrent Rocket, and Silicon Power P34A80. It supports LDPC error correction, end-to-end data path protection, and thermal throttling.

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Last updated: 2026-05-23. Source: https://ssdrive.net/mydigitalssd-bpx-pro-256-gb