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KingSpec · PCIe 3.0 · 512 GB

KingSpec NX Series 512GB Gen3x4

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

Performance
59
Perf / price
103
Capacity value
53
Amazon
$86
$86
Available on Amazon Updated Aug 16, 2026
Performance59.1
Performance / price103.0
Capacity value52.7

Written analysis

KingSpec NX Series 512GB Gen3x4 at a glance

The KingSpec NX Series 512GB Gen3x4 is a 512 GB M.2 2280 SSD using PCIe 3.0 x4, NVMe 1.3. The controller is Maxio MAP1202 / Silicon Motion SM2263XT. Flash type is TLC 96-layer. Cache is listed as Host-Memory-Buffer (HMB).

Rated sequential throughput is 3500 MB/s read and 2700 MB/s write. Random throughput is 330K read IOPS and 250K write IOPS. The calculated specification score is 59.1.

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

Endurance and thermals

Rated endurance is 250 TBW, or approximately 488 TBW per TB of capacity. The listed warranty is 3 years.

Current value

At $86, the drive costs $167.95 per TB. Performance / price is 103.0 and capacity value is 52.7. 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
KingSpec
SSD
KingSpec NX Series 512GB Gen3x4
Capacity
512 GB
Form factor
M.2 2280
Launch price
Amazon price
$86
Amazon availability
Available
Price updated
Aug 16, 2026

Performance

Sequential read
3500 MB/s
Sequential write
2700 MB/s
Random read
330K IOPS
Random write
250K IOPS

Value

Amazon price
$86
Price / TB
$167.95
Performance / price
103.0
Capacity value
52.7

Hardware & cache

Interface
PCIe 3.0 x4, NVMe 1.3
Interface generation
PCIe 3.0
Controller
Maxio MAP1202 / Silicon Motion SM2263XT
NAND
TLC 96-layer
Process
20
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
250 TBW
Endurance / TB
488 TBW
Warranty
3 years
Idle power
Active power

Amazon

Price history

Nearby performance

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Discussion

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