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Biwin Black Opal NV7400 4TB specifications and in-depth review

Biwin Black Opal NV7400 4TB

Manufacturer: Biwin

The Biwin Black Opal NV7400 4TB is a high-capacity M.2 NVMe solid-state drive built around the NVMe 2.0 protocol and PCIe 4.0 interface. It carries a 4TB usable capacity and relies on TLC NAND storage paired with the Maxiotek MAP1602A Falcon Lite Gen4 controller, making it a sizeable option for users who need substantial internal storage without adding extra drives.

On the performance side, the drive reaches sequential read and write speeds of 7400 MB/s and 6500 MB/s respectively, while both random read and write figures land at 900,000 IOPS. The four-channel controller works alongside HMB (Host Memory Buffer) in place of dedicated DRAM cache. Endurance is rated at 4,000 TBW with an MTBF of 1.5 million hours, and Biwin backs the drive with a five-year warranty. It operates up to a maximum temperature of 70 °C, ships without an integrated heatsink, and does not include AES hardware encryption or RGB lighting.

Pros
  • Sequential read speed of 7400 MB/s and write speed of 6500 MB/s indicate strong sustained transfer capability for large file operations
  • 4TB capacity offers substantial internal storage within a single M.2 form factor
  • NVMe 2.0 over PCIe 4.0 ensures a modern, high-bandwidth interface connection
  • 4000 TBW endurance rating paired with an MTBF of 1.5 million hours points to solid long-term reliability
  • Five-year warranty provides extended coverage for a storage device
  • Random read and write speeds of 900,000 IOPS each suggest consistent responsiveness under varied workloads
Cons
  • No integrated heatsink, which may require additional thermal management depending on the system and workload
  • HMB-based caching relies on system RAM rather than dedicated onboard DRAM, which can limit cache performance in low-memory environments
  • No AES hardware encryption support, making it unsuitable for use cases that require hardware-level data security
  • Maximum operating temperature of 70 degrees Celsius may be a limiting factor in thermally constrained builds
Who is this for?

This drive is well-suited to users who work regularly with large file transfers or high-capacity storage needs, such as video editors, content creators, or data archivists who require both speed and ample space in a single M.2 slot. The combination of PCIe 4.0, NVMe 2.0, and sequential speeds reaching 7400 MB/s read and 6500 MB/s write makes it a practical fit for systems that can fully utilize a Gen4 interface. Its 4000 TBW endurance rating and five-year warranty also make it a reasonable choice for users who write data frequently and want long-term reliability without replacing drives often.

Who is this NOT for?

Users who require hardware-level AES encryption for compliance, security-sensitive work, or enterprise data protection will find this drive unsuitable, as it offers no encryption support. Systems with limited RAM may also struggle to get consistent cache performance from this drive, since it relies entirely on HMB rather than dedicated onboard DRAM, which can reduce responsiveness under memory pressure. Additionally, users building in compact or thermally restricted enclosures should note that the drive has no integrated heatsink, meaning adequate airflow or third-party cooling solutions would need to be factored into the build.

Read speed:

sequential read speed 7400 MB/s
random read speed 900000 IOPS

The Biwin Black Opal NV7400 reaches a sequential read speed of 7400 MB/s, allowing large files to be transferred quickly in sustained workloads. For workloads involving smaller, non-sequential data, the drive delivers a random read speed of 900,000 IOPS, reflecting strong responsiveness across varied access patterns.

Write speed:

sequential write speed 6500 MB/s
random write speed 900000 IOPS

The Biwin Black Opal NV7400 supports a sequential write speed of 6500 MB/s, enabling large volumes of data to be written to the drive at a sustained pace. When handling fragmented or mixed workloads, it maintains a random write speed of 900,000 IOPS, indicating consistent write performance across a range of access patterns.

Benchmarks:

General info:

type M2
SSD cache HMB (Host Memory Buffer)
Is an NVMe SSD ✓
NVMe version 2
internal storage 4000GB
controller Maxiotek MAP1602A Falcon Lite Gen4
SSD storage type TLC
PCI Express (PCIe) version 4
Controller channels 4
Terabytes Written (TBW) 4000
MTBF 1.5million hours
warranty period 5 years
Has an integrated heatsink ✕
maximum operating temperature 70 °C
bits of encryption supported 0
has RGB lighting ✕

The Biwin Black Opal NV7400 is an M.2 NVMe SSD using the NVMe 2.0 protocol over a PCIe 4.0 interface, with a total internal storage capacity of 4000GB. It uses TLC NAND and is governed by the Maxiotek MAP1602A Falcon Lite Gen4 controller operating across four channels, while caching is handled through HMB (Host Memory Buffer) rather than dedicated onboard DRAM. Endurance is rated at 4000 TBW with an MTBF of 1.5 million hours, and the drive carries a five-year warranty. The maximum operating temperature is 70 °C, and the drive does not include an integrated heatsink, AES hardware encryption, or RGB lighting.

Final Verdict

The Biwin Black Opal NV7400 4TB presents a well-rounded specification sheet for a Gen4 M.2 NVMe drive, combining a 4TB capacity with sequential read speeds up to 7400 MB/s and a 4000 TBW endurance rating backed by a five-year warranty. It is a practical option for users who need generous storage space and sustained transfer performance in a single drive, particularly in content creation or data-intensive workflows. That said, the absence of hardware encryption and the reliance on HMB caching mean it is better suited to general consumer and prosumer workloads than to security-critical or memory-constrained environments. Overall, the Biwin Black Opal NV7400 4TB delivers a solid combination of speed, capacity, and long-term durability for users whose systems can take full advantage of the PCIe 4.0 interface.

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