Kioxia Exceria Pro G2 2TB PCIe 5.0 NVMe SSD Review (2026)
The 2 TB Kioxia Exceria Pro G2 delivers flagship PCIe 5.0 performance and the family's full 14,900 MB/s read speed, pairing a Silicon Motion SM2508 controller with 218-layer BiCS8 TLC NAND.
Controller & Memory
The Exceria Pro G2 is Kioxia's fastest consumer NVMe SSD and its first true PCIe 5.0 flagship under the Exceria Pro badge. Where earlier Exceria Pro drives topped out at PCIe 4.0 and 2 TB, the G2 moves to the Gen5 platform and stretches to a 4 TB option, putting it up against established Gen5 drives such as the Crucial T705 and Samsung 9100 Pro. The 2 TB model is the sweet spot of the range, pairing the family's full 14,900 MB/s read speed with enough capacity for a large game library plus a working set of creative files.
Inside, the drive combines Silicon Motion's 8-channel SM2508 PCIe 5.0 controller with Kioxia's own 218-layer BiCS8 3D TLC NAND and an LPDDR4 DRAM cache. That stack is what lets the 2 TB card hit 14,900 MB/s sequential reads and 13,400 MB/s writes alongside roughly 2.25 million random read IOPS, figures that place it firmly in flagship territory. TLC NAND rather than QLC is what keeps sustained behaviour and long-term reliability predictable, which matters on a drive this fast.
What separates the Pro G2 from many early Gen5 drives is efficiency. Several reviewers highlight that it runs surprisingly cool for the platform, holding its performance in cases with ordinary airflow rather than demanding a dedicated heatsink and fan. On the 2 TB card that composure is valuable, because a drive bought for both bulk storage and speed has to sustain throughput during long file moves and exports without backing off the moment it warms up.
Storage Comparisons:
Exceria Pro G2 Performance & Benchmarks
On paper the 2 TB Exceria Pro G2 is rated for 14,900 MB/s sequential reads and 13,400 MB/s writes, with around 2,250,000 random read and 1,950,000 random write IOPS. Unlike the 1 TB card, the 2 TB gets the family's full read speed, so it is the smallest capacity that gives you everything the platform offers. In day-to-day use that sequential headroom shows up when moving large files, game installs, video projects or virtual machine images, while for plain booting and browsing the gap to a good PCIe 4.0 drive is narrower than the raw numbers suggest. Gen5 earns its keep in sustained throughput and high-queue-depth random performance, the conditions DirectStorage-era games and creative tools are starting to use. Reviewers measuring the Pro G2 family confirm it reaches its advertised figures while staying efficient on power and heat, which helps it keep performing under sustained loads instead of throttling. For a balance of capacity, speed and price, the 2 TB is the model most buyers settle on.
Kioxia Exceria Pro G2 2 TB vs M.2 5.0 x 4 peers
Switch between sequential throughput and random IOPS to see how this drive stacks up against other M.2 5.0 x 4 SSDs in our database. The highlighted bar is the drive on this page — click any other bar to open that drive.
- Kioxia Exceria Pro G2 2 TB (this drive): 14,900 MB/s read, 13,400 MB/s write
- PNY XLR8 CS3250 4 TB: 14,900 MB/s read, 13,500 MB/s write
- Samsung 9100 Pro 4 TB: 14,800 MB/s read, 13,400 MB/s write
- Samsung 9100 Pro 8 TB: 14,800 MB/s read, 13,400 MB/s write
- Samsung 9100 Pro 1 TB: 14,700 MB/s read, 13,300 MB/s write
Kioxia Exceria Pro G2 vs Competitors
See how the Exceria Pro G2 stacks up against other M.2 5.0 x 4 drives in our database:
Compare with rival drives:
Endurance, TBW & Warranty
The 2 TB Exceria Pro G2 carries a 1,200 TBW endurance rating and a 5-year limited warranty, and for nearly every owner the warranty is what runs out first. Twelve hundred terabytes written is about 660 GB of writes every day for five years, far beyond a typical 20 to 50 GB daily consumer workload. At 50 GB per day you would need roughly 66 years to exhaust the rated endurance, so the NAND will long outlast the warranty and wear is not a realistic concern for gaming, streaming or creative work. Kioxia backs the drive for five years from purchase, and as a major manufacturer RMAs are handled through Kioxia or the retailer rather than an anonymous marketplace seller. That matters when a fast 2 TB drive is likely holding your operating system, games and projects at once, so keep your proof of purchase and register the drive if prompted.
Kioxia Exceria Pro G2 2 TB Specifications
| Category | Value |
|---|---|
| Capacity [?] | 2 TB |
| Interface [?] | M.2 5.0 x 4 |
| Controller [?] | Silicon Motion SM2508 8 Channel |
| Memory type [?] | Kioxia BiCS8 218-L 3D TLC |
| DRAM [?] | Yes |
| Read speed (MB/s) [?] | 14900 |
| Write speed (MB/s) [?] | 13400 |
| Read IOPS [?] | 2250000 |
| Write IOPS [?] | 1950000 |
| Endurance (TBW) [?] | 1200 |
| MTBF (million hours) [?] | 2000000 |
| Warranty (years) [?] | 5 |
Verdict: Is the Exceria Pro G2 Worth It in 2026?
The 2 TB Kioxia Exceria Pro G2 is the model most buyers should pick. It pairs the family's full 14,900 MB/s read speed with enough room for a sizeable game library and a working set of creative files, all on the modern SM2508 plus BiCS8 TLC platform and backed by a 5-year warranty, and it runs cooler than most of its Gen5 rivals. Choose it if you have a PCIe 5.0 motherboard and want one drive that is both fast and spacious. Step down to the 1 TB if budget is tight, or up to the 4 TB if you need maximum capacity; skip the line entirely if your board only supports PCIe 4.0, since you would pay for Gen5 headroom you cannot use.
+ Pros
- PCIe 5.0 flagship speeds up to 14,900 MB/s read
- Full read speed, unlike the 1 TB model
- Silicon Motion SM2508 controller with BiCS8 218L TLC
- LPDDR4 DRAM cache
- Runs cool for a Gen5 drive
- 5-year warranty
- Cons
- Premium price per terabyte versus Gen4 drives
- Needs a PCIe 5.0 platform to justify the speed
- Gen5 draws more power under load than a Gen4 drive
Buy this or similar SSD Storage:
Video Review
Kioxia Exceria Pro G2 PCIe 5.0 NVMe SSD video review
