Micron 2450 512GB — Mid-Range PCIe 4.0 NVMe for Mobile Devices

Posted on May 17, 2026 by Raymond Chen

The Micron 2450 512GB hits the sweet spot in Micron's OEM-focused PCIe 4.0 lineup, delivering nearly double the write speed of the 256GB model while keeping the same ultra-low power draw and multi-form-factor flexibility.

Micron 2450 512GB — Mid-Range PCIe 4.0 NVMe for Mobile Devices

The Micron 2450 512GB pairs a Phison PS5019-E19 controller with Micron's 176-layer 3D TLC NAND in a DRAM-less, HMB-assisted design. The 512GB capacity is where this drive starts to make real sense: writes jump from 1,600 MB/s on the 256GB model to 3,000 MB/s here — a near-doubling that matters for anyone copying files, installing large applications, or working with media assets.

Like its smaller sibling, the 2450 512GB is available in M.2 2230, 2242, and 2280 lengths. The 2230 variant fits devices that can't accept a standard 2280 drive — Steam Deck, Microsoft Surface Pro, and a growing list of ultraportable laptops. This form-factor versatility is the 2450's defining feature and the reason OEMs choose it for compact devices.

Power efficiency remains the standout characteristic. With under 3 mW in sleep and under 400 mW in active idle, the 2450 is listed on Intel's Modern Standby Partner Portal, meaning laptop manufacturers can certify their systems for Instant Go with this drive installed. For daily laptop use, this translates to measurable battery life advantage over desktop-class NVMe drives that idle at 3–5 watts.

Endurance improves with capacity: the 512GB model is rated at 300 TBW, up from 180 TBW on the 256GB. That's a meaningful difference for anyone who writes large files regularly.

In the budget mobile segment, the 2450 512GB competes against the WD Blue SN580 500GB (faster, 5-year warranty), the Samsung 980 500GB (similar DRAM-less design), and the Kioxia Exceria G2 500GB.

✅ Storage Comparisons:

Best 4 TB SSD Best Deal of 1 TB SSDs NVME Best PCIe 5.0 SSD

🚀 Performance and benchmarks

The Micron 2450 512GB is rated at up to 3,500 MB/s sequential reads and 3,000 MB/s sequential writes, with up to 380,000 IOPS random reads and 500,000 IOPS random writes. The read speed is unchanged from the 256GB model — both hit the same PCIe 4.0 x4 ceiling — but the write speed nearly doubles, closing the gap between this drive and its larger 1TB sibling.

Performance comparison

Micron 2450 512 GB vs M.2 4.0 x 4 peers

Switch between sequential throughput and random IOPS to see how this drive stacks up against other M.2 4.0 x 4 SSDs in our database. The highlighted bar is the drive on this page — click any other bar to open that drive.

PNY XLR8 CS3140 1 TB: 7,500 MB/s read, 5,650 MB/s write
PNY XLR8 CS3140 2 TB: 7,500 MB/s read, 6,850 MB/s write
Asgard AN4 512 GB: 7,500 MB/s read, 5,500 MB/s write
Asgard AN4 1 TB: 7,500 MB/s read, 5,500 MB/s write
Micron 2450 512 GB (this drive): 3,500 MB/s read, 3,000 MB/s write

At 3,000 MB/s, the 512GB model's sequential writes are genuinely useful for real-world workloads. Transferring a 30 GB game installation takes roughly 10 seconds in burst mode (before the SLC cache exhausts). After the cache fills, sustained direct-TLC write speeds on Phison E19-based DRAM-less drives typically land in the 600–1,000 MB/s range — adequate for most tasks but noticeably slower than DRAM-equipped competitors during extended transfers.

The 380K random read IOPS figure reflects strong 4K performance for a DRAM-less drive. HMB (Host Memory Buffer) gives the controller access to system RAM for its flash translation table, keeping random read latencies competitive with entry-level DRAM drives. The 500K random write IOPS is SLC-cache-dependent and drops significantly under sustained random-write workloads like database operations or video rendering scratch disks.

Thermal behavior is a non-issue with this drive. Its low power envelope means passive cooling in any laptop chassis keeps temperatures well below throttling thresholds, even during extended transfers.

🖥️ Endurance and warranty

Micron covers the 2450 512GB with a 3-year limited warranty and a 300 TBW endurance rating. At 300 TBW, you could write roughly 274 GB per day across the three-year warranty period before hitting the rated limit. For context, a typical laptop workload generates 20–50 GB of writes per day from OS operations, browser activity, and application usage — meaning most users will never approach the endurance ceiling. The 3-year warranty falls short of the 5-year coverage offered by Western Digital (SN580), Samsung (980), and Kioxia on their comparable drives, which is a genuine competitive weakness. Since the 2450 is primarily sold as an OEM component, warranty support usually routes through the laptop manufacturer rather than Micron directly. If you bought this drive retail as an upgrade, confirm your return path before relying on the warranty. Micron rates the drive at 2 million hours MTTF, a statistical reliability metric based on population testing rather than an individual drive's guaranteed lifespan.

📊 Specs

Category	Value
Capacity [?]	512 GB
Interface [?]	M.2 4.0 x 4
Controller [?]	Phison PS5019-E19
Memory type [?]	Micron 3D TLC
DRAM [?]	n/a
Read speed (MB/s) [?]	3500
Write speed (MB/s) [?]	3000
Read IOPS [?]	380000
Write IOPS [?]	500000
Endurance (TBW) [?]	300
MTBF (million hours) [?]	n/a
Warranty (years) [?]	3

Conclusion

The Micron 2450 512GB is the capacity at which this drive becomes genuinely useful. The 3,000 MB/s write speed and 300 TBW endurance make it a competent everyday SSD for thin laptops and compact devices, especially those that need M.2 2230 or 2242 form factors. Its power efficiency is unmatched in the budget segment, and the 512GB capacity is enough for a Windows installation plus a moderate game library. The 3-year warranty remains a weakness compared to the 5-year coverage from Western Digital, Samsung, and Kioxia. If your device accepts a standard M.2 2280 drive, the WD Blue SN580 500GB is a better all-around choice. But if you're limited to 2230 or 2242 slots, the 2450 512GB is one of the few PCIe 4.0 options available.

+ Pros

3,000 MB/s writes — nearly double the 256GB model
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
300 TBW endurance at 512GB capacity
Cool operation under passive cooling

- Cons

3-year warranty vs 5 years from competitors
DRAM-less design limits sustained random write performance
OEM-focused — limited retail availability
512GB fills up with modern game libraries

🛒 Buy this or similar SSD Storage:

Samsung 980 Pro 2 Tb

-57% $165
List Price: $379.99

Buy on Amazon

INLAND Performance Plus 1 Tb

$79.99

Buy on Amazon

Silicon Power 512GB NVMe SSD

$42.97

Buy on Amazon

✨ Video Review

Micron Portfolio of Client SSDs

⁉️ FAQ

Yes, the Micron 2450 512GB works well as a gaming drive for moderate libraries. The 3,500 MB/s read speed handles game loading quickly, and it supports DirectStorage for compatible Windows 11 titles. However, 512GB fills up fast — modern games routinely exceed 100 GB each, so you'll fit roughly 4–6 large titles alongside your OS. For a dedicated game library, a 1TB or 2TB drive makes more sense.

No, the Micron 2450 512GB is DRAM-less. It uses HMB (Host Memory Buffer), an NVMe protocol feature that borrows a small amount of system RAM — typically 64–128 MB — for the flash translation layer mapping table. This eliminates the dedicated DRAM chip, reducing cost, power consumption, and PCB complexity. For everyday use, HMB delivers performance close to entry-level DRAM drives. Under sustained heavy writes, the lack of DRAM becomes noticeable as write speeds drop once the SLC cache is exhausted.

The Micron 2450 512GB is rated at 300 TBW (terabytes written). This means the drive is warranted to handle 300 terabytes of total writes over its 3-year warranty period. Breaking that down: you could write roughly 274 GB every day for three years before reaching the limit. Most laptop users generate 20–50 GB of writes daily, meaning the drive should far outlast the warranty. The 256GB model is rated at 180 TBW and the 1TB model at 600 TBW.

The Micron 2450 is available in M.2 2230 (22 × 30 mm), which matches the Steam Deck and Microsoft Surface Pro/Laptop form factor requirements. However, you must confirm your specific unit ships in the 2230 variant — not all retailers stock it. The 2450 also comes in 2242 and 2280 lengths, which fit most standard laptop M.2 slots. Check your device's maximum supported M.2 length and keying before purchasing.

No, the Micron 2450 512GB does not meet Sony's PS5 expansion requirements. Sony mandates a minimum 5,500 MB/s sequential read speed for PCIe 4.0 NVMe drives used in the PS5's M.2 expansion slot. The 2450 512GB is rated at 3,500 MB/s reads — well below that threshold. Even if physically installed with an adapter, it would not function reliably as PS5 expanded storage.

The WD Blue SN580 500GB outperforms the 2450 512GB in most metrics: roughly 4,100 MB/s reads vs 3,500 MB/s, approximately 3,900 MB/s writes vs 3,000 MB/s, and a 5-year warranty vs 3 years. The 2450's advantages are its multi-form-factor availability (2230, 2242, 2280) and lower power consumption — both critical in thin laptops but irrelevant in desktops. If your device accepts a standard M.2 2280 drive, the SN580 is the stronger choice.

No. The Micron 2450 512GB generates very little heat thanks to its low power envelope — under 400 mW in active idle. In any laptop chassis with a basic thermal pad or M.2 slot contact plate, the drive stays within safe operating temperatures. Heatsinks are also impractical for the 2230 and 2242 form factors, which rarely have clearance for additional cooling hardware.