KingSpec OneBoom X400 2TB M.2 SSD Gen4 7300MB/s - Fast NVMe Storage

In this review the KingSpec OneBoom X400 2TB is evaluated as a high-performance internal NVMe drive aimed at gamers and content creators who need faster load and export times. Its headline feature is the 7300MB/s read speed, driven by PCIe 4.0 x4, which makes the most noticeable difference: game load screens shrink to seconds and 4K export times are roughly halved compared with typical Gen3 drives. The review focuses on real-world use: long transfers, thermal behavior, compatibility with PS5 and laptops, and whether the drive sustains performance during extended sessions.

Key Features

• PCIe 4.0 x4 performance: Sustained 7300MB/s reads give much faster level loads and project scrubbing for editing timelines.
• 3D TLC NAND with SLC caching: Dynamic caching preserves peak write speeds during large 100GB file transfers and long recording sessions.
• Intelligent Thermal Guard: Multi-layer graphene heatsink plus SMART thermal throttle reduces the chance of performance drops during long 3-hour renders or marathon play.
• Wide compatibility: M.2 2280 form factor works in gaming laptops, creator workstations and PS5 installs with simple, tool-free fitment.
• High endurance options: Larger capacities such as 4TB offer increased TBW for long-term game libraries and video archives.
• Low idle power: Efficient 2.5mW idle draw helps laptops preserve battery while leaving the drive installed.

Who It's For

The OneBoom X400 is best for PC gamers and video editors who want a clear performance upgrade over Gen3 NVMe drives and who run large game installs or 4K footage. It suits PS5 owners who want faster in-console load times and creators who need shorter export windows without changing their host system.

Those who should look elsewhere include users on older motherboards without PCIe 4.0 support, where the drive cannot reach its full speed, and budget buyers who prioritize lower cost per GB over peak throughput and thermal management.

Pros & Cons

Pros

• Very high sequential read throughput ideal for fast loads and timeline performance.
• Dynamic SLC caching and 3D TLC NAND maintain sustained speed on large transfers.
• Thermal design with graphene heatsink helps prevent throttling during extended sessions.
• Tool-free M.2 2280 compatibility makes installation simple across devices including PS5.

Cons

• Requires a PCIe 4.0 host to achieve top speeds, so older systems will see reduced gains.
• Warranty is three years, which is adequate but shorter than some premium competitors.

Specifications

Our Verdict

The KingSpec OneBoom X400 2TB is a strong value for gamers and creators with PCIe 4.0 systems who want a tangible reduction in load and export times. Its combination of high sequential speed, sustained-write caching and a graphene thermal guard delivers reliable performance in long sessions, making it a practical upgrade for PS5 installs and workstations where fast storage translates directly to better workflow.

Frequently Asked Questions

Will this work in a PS5?
Yes, the M.2 2280 form factor and thermal protection make it compatible with PS5 storage expansion, given the console firmware supports the drive.

Do I need PCIe 4.0 to see benefits?
To reach the full 7300MB/s peak, a PCIe 4.0 slot is required; it will still work in PCIe 3.0 but at reduced speeds.

Is the drive reliable for long 4K renders?
The 3D TLC NAND, dynamic SLC caching and thermal guard aim to sustain performance for multi-hour renders, backed by a 2M-hour MTBF rating and higher TBW on larger capacities.