Kioxia
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The KIOXIA 512 GB PCIe Gen 4 NVMe M.2 SSD is offered in two series: the BG6, a compact, power‑efficient drive for ultrathin laptops, and the XG8, a high‑performance model with very fast sequential reads and enterprise‑grade endurance.
Pros
Cons
Current
$109.99
Average
$80.68
Lowest
$38.75
Highest
$110.00
Lower = better sales rank
![SABRENT 4-Drive NVMe M.2 SSD to PCIe 3.0 x4 Adapter Card [EC-P3X4]](https://m.media-amazon.com/images/I/41NmfT8xoAL._SL500_.jpg)
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Best For
BG6 512 GB – ultrabooks, 2‑in‑1s, mini‑PCs, and any thin laptop needing a compact, low‑power SSD. XG8 512 GB – gamers, content creators, and light‑duty data‑center or enterprise boot scenarios that demand the highest sequential read speeds and higher endurance.
Not Ideal For
Thin‑and‑light laptops that cannot accommodate the XG8’s 7.7 W active power draw, users who require a DRAM‑cached drive for sustained heavy workloads, and customers who need a readily available retail SKU.
Expert Opinion
Professional analysts praise the XG8 for delivering near‑enterprise endurance and top‑tier sequential performance while the BG6 is lauded for its ultra‑compact size and power efficiency, making both solid choices for their target segments. The main criticism centers on the lack of DRAM cache, which can limit sustained throughput, and the higher power draw of the XG8 in thin devices.
What Users Say
Everyday users consistently highlight fast system boot and reliable operation, especially in OEM laptops. However, they express frustration with limited retail availability, brand‑specific firmware tools, and occasional throttling during prolonged writes.
Common Complaints
OEM‑only distribution limiting purchase options, performance drops under sustained writes due to HMB reliance and thermal throttling, and the absence of a universal KIOXIA SSD management utility.
How It Compares
Compared to other PCIe 4.0 client SSDs, the XG8’s 7,000 MB/s read speed outpaces many competitors such as the Samsung 980 Pro and WD Black SN850, while its endurance of 1 DWPD exceeds typical consumer drives. The BG6 trades raw speed for a smaller footprint and lower power, making it more comparable to drives like the Samsung PM991a in thin‑laptop scenarios, but it lags behind high‑end models in sustained write performance.
