# Micron 2450 256GB — Compact PCIe 4.0 NVMe for Mobile Systems (2026)

The Micron 2450 256GB is the entry-capacity model of Micron's OEM-focused PCIe 4.0 SSD line, purpose-built for thin laptops where power efficiency and compact form factors matter more than peak throughput.

Quick answer: The Micron 2450 256GB makes sense in one specific scenario: you need a compact, power-efficient PCIe 4.0 SSD for a thin laptop or handheld device that uses M.2 2230 or 2242 slots. Its multi-form-factor support and sub-3-mW sleep draw are genuine advantages in mobile platforms. For anything else, look at the WD Blue SN580 250GB or Samsung 980 250GB — both offer faster write speeds and a 5-year warranty at a similar price point. As a budget mobile boot drive, the 2450 does its job quietly and efficiently, but the 256GB capacity fills up fast and the 3-year warranty lags behind the competition.

## Specifications

| Specification | Value |
| --- | --- |
| Capacity | 256 GB |
| Interface | M.2 4.0 x 4 |
| Controller | Phison PS5019-E19 |
| Memory type | Micron 3D TLC |
| DRAM cache | HMB |
| Sequential read | 3500 MB/s |
| Sequential write | 1600 MB/s |
| Random read IOPS | 190000 |
| Random write IOPS | 400000 |
| Endurance | 180 TBW |
| MTBF | 2000000 |
| Warranty | 3 years |

## Performance

The Micron 2450 256GB is rated at up to 3,500 MB/s sequential reads and 1,600 MB/s sequential writes, with up to 190,000 IOPS random reads and 400,000 IOPS random writes. Those read speeds approach the practical ceiling for a PCIe 4.0 x4 drive in real-world workloads, but the 1,600 MB/s write figure tells a different story — it's roughly half what the 512GB and 1TB variants achieve.

The write-speed gap matters most for sustained transfers. Moving a 50 GB game library or a large video project to this drive will saturate the SLC cache quickly, after which write speeds drop toward direct-TLC levels — typically 400–800 MB/s on DRAM-less Phison E19 drives. For everyday use — booting Windows, loading applications, opening documents — this is entirely adequate and feels fast. For write-heavy workflows like 4K video editing or large database operations, the 256GB model becomes a bottleneck.

Random 4K performance at 190K read IOPS is respectable for a DRAM-less drive using HMB. In practice, this translates to snappy OS responsiveness and reasonable application load times, though it won't match the sub-200-microsecond latencies of DRAM-equipped drives like the WD Black SN850X. The 400K write IOPS figure is inflated by SLC caching — sustained random writes will drop considerably once the cache fills.

Thermally, the 2450 runs cool by design. Its low power envelope means passive cooling in a laptop chassis is sufficient; thermal throttling is rarely a concern unless the drive is pushed through continuous multi-hour write workloads.

## Endurance, TBW & Warranty

Micron backs the 2450 256GB with a 3-year limited warranty and a 180 TBW endurance rating. At 180 TBW, you could write roughly 164 GB per day for three years before exhausting the rated endurance — or about 50 GB per day for nearly ten years. For a typical laptop user writing 20–40 GB daily (OS updates, application installs, browser cache), the 256GB model will outlast the warranty period by a wide margin. The 3-year warranty is shorter than the 5-year coverage that competitors like Western Digital and Samsung offer on their budget drives, which is a real drawback. Micron also rates the drive at 2 million hours MTTF (mean time to failure), a statistical population measure that indicates expected reliability across a large batch of drives rather than a guaranteed lifespan for any single unit. Since the 2450 is primarily an OEM drive, warranty claims typically go through the laptop manufacturer rather than Micron directly — check your system's warranty terms before planning an RMA.

## Pros and Cons

**Pros:**

- Available in M.2 2230, 2242, and 2280 form factors
- Sub-3 mW sleep draw extends laptop battery life
- 176-layer Micron 3D TLC NAND
- Intel Modern Standby certified
- Cool operation under passive cooling
**Cons:**

- 1,600 MB/s writes — slowest in the 2450 lineup
- 3-year warranty vs 5 years from competitors
- 256GB capacity fills quickly with modern games
- DRAM-less design limits sustained random write performance


## Verdict

The Micron 2450 256GB makes sense in one specific scenario: you need a compact, power-efficient PCIe 4.0 SSD for a thin laptop or handheld device that uses M.2 2230 or 2242 slots. Its multi-form-factor support and sub-3-mW sleep draw are genuine advantages in mobile platforms. For anything else, look at the WD Blue SN580 250GB or Samsung 980 250GB — both offer faster write speeds and a 5-year warranty at a similar price point. As a budget mobile boot drive, the 2450 does its job quietly and efficiently, but the 256GB capacity fills up fast and the 3-year warranty lags behind the competition.

## Frequently Asked Questions

### Is the Micron 2450 256GB good for gaming?

The Micron 2450 256GB works as a budget gaming boot drive, but the 256GB capacity limits how many modern titles you can store — a single game like Call of Duty can exceed 200 GB. The 3,500 MB/s read speed loads games quickly enough, and the drive supports DirectStorage for compatible titles. For a dedicated game library, the 1TB model or a competing drive like the WD Blue SN580 500GB makes more sense.

### Does the Micron 2450 have a DRAM cache?

No, the Micron 2450 is a DRAM-less SSD. It uses HMB (Host Memory Buffer), a PCIe NVMe feature that allows the drive to borrow a small portion of system RAM — typically 64–128 MB — for its flash translation layer mapping table. This eliminates the dedicated DRAM chip, reducing cost and power consumption. For everyday workloads, HMB performs close to DRAM-equipped drives, but sustained random writes suffer once the SLC write cache is exhausted.

### What is the TBW endurance of the Micron 2450 256GB?

Micron rates the 2450 256GB at 180 TBW (terabytes written). That means the drive is warranted to handle 180 terabytes of total writes over its 3-year warranty period. In practical terms, writing 164 GB every day for three years would reach that limit. For a typical laptop user generating 20–40 GB of writes per day, the drive should last well beyond the warranty window. The 512GB model is rated at 300 TBW and the 1TB model at 600 TBW.

### Will the Micron 2450 256GB fit in a Steam Deck or Surface laptop?

The Micron 2450 is available in M.2 2230 (22 × 30 mm), which is the exact form factor used in the Steam Deck, Microsoft Surface Pro, and Surface Laptop lines. However, you need to confirm which specific form factor your unit of the 2450 ships in — not all retailers stock the 2230 variant. If you have a standard M.2 2280 slot (most desktops and many laptops), the 2280 variant fits without issue. Always check your device's maximum supported M.2 length before purchasing.

### Is the Micron 2450 256GB compatible with the PS5?

The Micron 2450 256GB is not a practical PS5 upgrade. Sony requires a PCIe 4.0 NVMe SSD with at least 5,500 MB/s sequential read speed for the PS5's expansion slot, and the 2450 256GB is rated at only 3,500 MB/s reads. Even if it physically fits in a compatible M.2 adapter, the drive would fail Sony's speed requirement and may not function as expanded storage. Additionally, the 256GB capacity is well below Sony's recommended minimum of 250 GB — and even that would barely hold a handful of modern PS5 titles.

### How does the Micron 2450 256GB compare to the WD Blue SN580 250GB?

The WD Blue SN580 250GB is the stronger drive in almost every metric. It achieves roughly 4,100 MB/s reads and 3,900 MB/s writes — significantly faster than the 2450's 3,500/1,600 MB/s. WD also offers a 5-year warranty compared to Micron's 3-year coverage. The 2450's advantages are its multi-form-factor availability (2230, 2242, 2280) and lower power draw, which matter in thin laptops but are less relevant in desktops. If your device accepts a standard M.2 2280 drive, the SN580 is the better pick.

### Does the Micron 2450 need a heatsink?

No, the Micron 2450 does not need a heatsink for normal operation. Its low power envelope — under 400 mW in active idle — means it generates very little heat compared to desktop-class NVMe drives. In a laptop with any kind of thermal pad or M.2 slot contact plate, the 2450 stays well within safe operating temperatures. A heatsink would also be impractical given the drive's compact form factors (2230, 2242), which rarely have heatsink clearance.

---

Last updated: 2026-05-23. Source: https://ssdrive.net/micron-2450-256-gb