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Fikwot · PCIe 4.0 · 4000 GB

Fikwot FX991 M.2 SSD 4TB NVMe PCIe Gen 4x4

M.2 2280 · QLC NAND · Host-Memory-Buffer (HMB)

Performance
69
Perf / price
21
Capacity value
83
Amazon
$500
$500
Available on Amazon Updated Oct 2, 2026
Performance69.3
Performance / price20.8
Capacity value83.1

Written analysis

Fikwot FX991 M.2 SSD 4TB NVMe PCIe Gen 4x4 at a glance

The Fikwot FX991 M.2 SSD 4TB NVMe PCIe Gen 4x4 is a 4000 GB M.2 2280 SSD using PCIe 4.0 x4, NVMe 1.4. The controller is Maxio MAP1602. Flash type is 3D QLC NAND. Cache is listed as Host-Memory-Buffer (HMB).

Rated sequential throughput is 7300 MB/s read and 6200 MB/s write. Random throughput is 900K read IOPS and 950K write IOPS. The calculated specification score is 69.3.

Best fit: General storage workloads where compatibility and price matter more than peak transfer rates.

Endurance and thermals

Rated endurance is 2800 TBW, or approximately 700 TBW per TB of capacity. The listed warranty is 5 years.

Current value

At $500, the drive costs $125.00 per TB. Performance / price is 20.8 and capacity value is 83.1. Compare these values with nearby drives below; interface generation and headline speed alone do not determine value.

Drive data

Full specifications

Interface, flash, controller, cache, throughput, endurance, power, warranty, and value in one technical sheet.

General

Manufacturer
Fikwot
SSD
Fikwot FX991 M.2 SSD 4TB NVMe PCIe Gen 4x4
Capacity
4000 GB
Form factor
M.2 2280
Launch price
—
Amazon price
$500
Amazon availability
Available
Price updated
Oct 2, 2026

Performance

Sequential read
7300 MB/s
Sequential write
6200 MB/s
Random read
900K IOPS
Random write
950K IOPS

Value

Amazon price
$500
Price / TB
$125.00
Performance / price
20.8
Capacity value
83.1

Hardware & cache

Interface
PCIe 4.0 x4, NVMe 1.4
Interface generation
PCIe 4.0
Controller
Maxio MAP1602
NAND
3D QLC NAND
Process
12
Cache type
Host-Memory-Buffer (HMB)
DRAM
Host-Memory-Buffer (HMB)
DRAM capacity
64 MB
DRAM speed
2000 MT/s
SLC cache
Dynamic

Durability & power

Endurance
2800 TBW
Endurance / TB
700 TBW
Warranty
5 years
Idle power
—
Active power
—

Additional information

Color
Black

Amazon

Price history

Nearby performance

Similar SSDs

Drives close to Fikwot FX991 M.2 SSD 4TB NVMe PCIe Gen 4x4 on calculated specification performance. Open the SSD table to sort, filter, and compare side by side.

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Discussion

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Vendor copy

Amazon listing details

Marketplace feature text kept for reference. Structured specifications above are the source for scores and comparisons.

[Lightning-fast Top Performance]: Fikwot FX991 M.2 SSD 4TB adopts NVMe protocol and PCIe Gen 4x4 specifications, and the maximum read and write speed can easily reach 7000MB/s and 6000MB/s. With lightning-fast speeds, the FX991 NVMe SSD can make your computer's systems and applications respond quickly, improving work efficiency.

[Excellent Thermal Management]: FX991 NVMe SSD 4TB is equipped with Auto-adaptive temperature adjustment and power efficiency management. It can intelligently adjust the NVMe SSD heating temperature and power consumption control, which can reduces the burden on the device and extends the battery life of laptops and other devices. We have equipped M2 SSD 4TB with high-conductivity graphite heatsink. Under high load conditions, the internal ssd reading speed can still be close to the peak.

[HMB and SLC Cache]: With HMB and smart SLC cache, FX991 M.2 NVMe SSD can deliver outstanding performance. Host Memory Buffer (HMB) technology enables NVMe SSD to use the DRAM of the host system for read and write caching and buffering, significantly improving the speed of computer startup, multitasking, and game resource transfer and reading. At the same time, FX991 M.2 SSD also supports TRIM, S.M.A.R.T, AES-256 encryption and other technologies.

[Excellent Compatibility]: Whether it is a laptop, desktop computer or game console such as PS5, FX991 4TB SSD M.2 is perfectly compatible to meet your storage needs on various devices. FX991 4TB NVMe SSD can be used as a PS5 storage expansion, and you can easily upgrade your gaming experience with it.

[5-Year Service]: We are confident in the quality of our products, so we provide a limited service of up to 5 years or 2400TBW for the FX991 M.2 4TB SSD, so that you can enjoy excellent performance and reliability with confidence. Choose the top-performance FX991 M.2 2280 internal solid state drives to make your computing experience smoother and more efficient!