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Kioxia XG6 256GB — Review & Specs | Pricepect | Pricepect

Home Solid State DrivesKioxia XG6 256GB

Kioxia XG6 256GB — image 1

Kioxia

Kioxia XG6 256GB

3.4

$46.80

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KXG6AZNV256G

Solid State Drives

Expert Review Analysis

The Kioxia XG6 256 GB is a single‑sided M.2 2280 PCIe Gen3 x4 NVMe SSD that uses 96‑layer BiCS FLASH 3D TLC and offers peak sequential speeds up to 3,050 MB/s with low active power draw. It includes an optional self‑encrypting drive (TCG Opal 2.01) and is targeted at thin laptops, gaming PCs, and data‑center boot or caching applications.

✓ Best for: Power‑sensitive thin notebooks, gaming PCs or desktops where low active power and single‑sided design matter, and data‑center servers that need boot or caching storage with optional hardware encryption.✗ Not ideal for: Heavy write‑intensive environments such as professional video editing, large database servers, or users requiring high endurance and longer warranty coverage.

Pros

✓Provides competitive peak sequential throughput of up to 3,050 MB/s and random IOPS up to 355K/365K, matching higher‑end Gen3 SSDs.
✓Consumes only 4.7 W during active use and less than 3 mW at idle, delivering excellent power efficiency for battery‑powered devices.
✓

Price History

Current

$46.80

Average

$35.33

Lowest

$22.59

Highest

$46.80

Price trend (90d):0.0%

Best Seller Rank History

Now#16,614Best#771Worst#16,614 -15,588

Lower = better sales rank

Rating Trend

Rating3.4/ 5Reviews4

Specifications

Design

Height2.54 mm mm

Width22.86 mm mm

Length81.28 mm mm

Form FactorM.2 2280 (single-sided)

ConnectorM.2 M-key

Features

EncryptionTCG Opal 2.01 (SED), optional TCG Pyrite

General

BrandKioxia

ModelKXG6AZNV256G

Warranty5 years

MTTF1,500,000 hours

Operating Temperature0°C to 85°C

Performance

InterfacePCIe Gen3 x4, NVMe 1.3a

ControllerTC58NCP090GSD

DRAMLPDDR3

Sequential Read3,050 MB/s MB/s

Sequential Write1,550 MB/s MB/s

Power

Voltage3.3 V V

Active Power Consumption4.7 W W

Idle Power Consumption<3 mW

Storage

Capacity256 GB GB

Flash Type96-layer BiCS 3D TLC

Endurance<1 DWPD

Reliability

Operating Shock1,500 G (14.7 km/s², 0.5 ms)

Mean Time To Failure (MTTF)1,500,000 hours

Warranty

Warranty Period5 years

Encryption

Optional EncryptionTCG Opal 2.01 (SED) and optional TCG Pyrite

Dimensions & Weight

Height0.1 inches

Width0.9 Inches

Depth3.2 inches

Research Sources

primeline-solutions.com

tomshardware.com

store.supermicro.com

notebookcheck.net

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User Reviews

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(4 reviews)

Single‑sided M.2 2280‑S2 form factor enables installation in ultra‑thin notebooks and compact desktops.

✓Offers an optional self‑encrypting drive (SED) with TCG Opal 2.01 support for hardware‑based data protection.

✓Utilizes 96‑layer BiCS FLASH 3D TLC memory, providing high storage density and reliable performance.

Cons

✗Sustained sequential write speed drops to around 1.6 GB/s after the SLC cache is exhausted, limiting real‑world write performance.
✗Endurance rating of less than 1 DWPD makes it less suitable for write‑intensive workloads such as heavy database or video editing tasks.
✗Warranty period is limited to five years, which is shorter than some competing premium SSDs offering longer coverage.
✗No DRAM‑less architecture; while it includes LPDDR3 cache, newer DRAM‑less designs may achieve better power‑to‑performance ratios.
✗Lack of extensive consumer feedback makes real‑world reliability and long‑term durability harder to assess.

From Expert Reviews

Praised by Experts

✓Tom's Hardware highlighted the XG6's peak sequential speeds of up to 3.18 GB/s read and 2.96 GB/s write, calling it very competitive for a Gen3 SSD.
✓NotebookCheck praised the drive as a fast high‑end NVMe/PCIe SSD for laptops, emphasizing its performance and power efficiency.

Criticized by Experts

✗Tom's Hardware noted that sustained performance falls to about 1.6 GB/s once the SLC cache is depleted, reducing real‑world write throughput.
✗Reviewers pointed out the XG6's endurance is below 1 DWPD, making it less ideal for heavy write workloads compared to higher‑end alternatives.

Expert Opinion

Professional reviewers consider the XG6 very competitive in peak performance for a Gen3 SSD, with Tom's Hardware emphasizing its 3.18/2.96 GB/s peak speeds and NotebookCheck highlighting its suitability for laptops. However, both note that sustained write speeds drop to roughly 1.6 GB/s after the SLC cache is exhausted and that its sub‑1 DWPD endurance limits its appeal for write‑heavy scenarios.

How It Compares

vs. Samsung 970 EVO 250GB

Advantages

✓Higher sustained sequential write speed of 2.5 GB/s compared to XG6's 1.55 GB/s
✓Slightly higher random read IOPS and mature ecosystem

Disadvantages

✗Higher active power consumption around 6 W
✗No optional SED encryption

Choose Samsung for higher sustained writes and broader support; choose Kioxia for lower power draw and hardware encryption.

vs. WD Black SN750 250GB

Advantages

✓Higher sequential write speed of up to 3 GB/s
✓Higher endurance up to 0.3‑1.3 DWPD

Disadvantages

✗Higher power draw around 7 W
✗No SED option

WD SN750 suits users needing higher endurance and write speed, while Kioxia excels in power‑sensitive thin laptops with encryption.

vs. Sabrent Rocket 256GB (Gen3)

Advantages

✓Very high peak and sustained speeds of 3.4 GB/s read and 3 GB/s write

Disadvantages

✗Higher power consumption around 7 W and no SED

Sabrent Rocket is best for performance‑focused builds, whereas Kioxia is better for power‑constrained notebooks that require encryption.