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SanDisk · PCIe 4.0 · 500 GB

SANDISK Optimus 5100 500GB

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

Performance: 68
Perf / price: 93
Capacity value: 46
Amazon: $110

View SANDISK Optimus 5100 500GB Gallery in high resolution

Available on Amazon Updated Oct 10, 2026

Performance67.9

Performance / price92.6

Capacity value46.3

$110 on Amazon Add this SSD to a build Compare this SSD SSD table

Written analysis

SANDISK Optimus 5100 500GB at a glance

The SANDISK Optimus 5100 500GB is a 500 GB M.2 2280 SSD using PCIe 4.0 x4, NVMe 2.0. The controller is WD Polaris 3. Flash type is 3D QLC NAND (BiCS8). Cache is listed as Host-Memory-Buffer (HMB).

Rated sequential throughput is 6600 MB/s read and 5600 MB/s write. Random throughput is 660K read IOPS and 1100K write IOPS. The calculated specification score is 67.9.

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

Endurance and thermals

Rated endurance is 300 TBW, or approximately 600 TBW per TB of capacity. The listed warranty is 5 years.

Current value

At $110, the drive costs $219.98 per TB. Performance / price is 92.6 and capacity value is 46.3. 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: SanDisk
SSD: SANDISK Optimus 5100 500GB
Part number: SDSP51500GAN
Model: SDSP51500GAN
Capacity: 500 GB
Form factor: M.2 2280
Launch price: —
Amazon price: $110
Amazon availability: Available
Price updated: Oct 10, 2026

Performance

Sequential read: 6600 MB/s
Sequential write: 5600 MB/s
Random read: 660K IOPS
Random write: 1100K IOPS

Value

Amazon price: $110
Price / TB: $219.98
Performance / price: 92.6
Capacity value: 46.3

Hardware & cache

Interface: PCIe 4.0 x4, NVMe 2.0
Interface generation: PCIe 4.0
Controller: WD Polaris 3
NAND: 3D QLC NAND (BiCS8)
Process: 16
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: 300 TBW
Endurance / TB: 600 TBW
Warranty: 5 years
Idle power: —
Active power: —

Additional information

Color: Black

Amazon

Price history

Nearby performance

Similar SSDs

Drives close to SANDISK Optimus 5100 500GB on calculated specification performance. Open the SSD table to sort, filter, and compare side by side.

Kingston Kingston NV3 1TB M.2 2280 NVMe SSD | PCIe 4.0 1000 GB · PCIe 4.0 · QLC

67.4

64.4

$157

TEAMGROUP TEAMGROUP MP44 4TB SLC Cache Gen4x4 M.2 2280 PCIe 4.0 4000 GB · PCIe 4.0 · TLC

67.6

19.9

79.6

$510

TEAMGROUP TEAMGROUP MP44 2TB SLC Cache Gen 4x4 M.2 2280 PCIe 4.0 2000 GB · PCIe 4.0 · TLC

67.7

31.2

62.5

$325

Western Digital WD Blue SN5100 500GB 500 GB · PCIe 4.0 · QLC

67.9

80.2

40.1

$127

SanDisk SANDISK Optimus 5100 500GB This drive

67.9

92.6

46.3

$110

Patriot Patriot P400 V4 1TB 1000 GB · PCIe 4.0 · TLC

68.0

48.7

$210

Kingston Kingston NV3 2TB M.2 2280 NVMe SSD | PCIe 4.0 Gen 2000 GB · PCIe 4.0 · QLC

68.1

36.4

72.7

$281

Kingston Kingston NV3 4TB M.2 2280 NVMe SSD | PCIe 4.0 4000 GB · PCIe 4.0 · QLC

68.1

18.6

74.5

$549

Patriot Patriot Memory Viper VP4300 Lite 4TB 4000 GB · PCIe 4.0 · QLC

68.2

17.3

69.4

$590

Compare these in the SSD table

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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.

SPEED UP PROJECTS. Launch creator applications fast with uncompromising PCIe 4.0 read speeds up to 7,100MB/s,[2] (1TB and 2TB[1] models) and write speeds up to 6,700MB/s[2] (1TB[1]-4TB[1] models).

CREATE AND STORE MORE. Make more room for your 4K videos and high-resolution images with capacities from 500GB[1] up to 4TB[1] on M.2 2280 built with our trusted 8th generation SANDISK BiCS QLC 3D CBA NAND.

IT GOES WHERE YOU GO. With an all-new power efficient design, your drive delivers high performance with low power, giving you more time to be productive while on the go.

UNCOMPROMISED RELIABILITY. With up to 1,200 TBW[3] (4TB[1] model) endurance rating, your drive is designed for creators.

KEEP YOUR DRIVE UPDATED. Monitor your SSD’s performance and check for updates with the downloadable SANDISK Dashboard application.[5]