SanDisk Optimus 5100 NVMe SSD 1TB
- Digital Storage Capacity: 1 TB
- HardDrive Size: 1 TB
- Connectivity Technology: M.2 2280
- Hard Disk Interface: PCIE X 4
Last refreshed Sep 9, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A capable PCIe 4.0 drive at this capacity, worth buying if your board supports Gen4 M.2 and you want the read-speed ceiling this SKU is rated for.
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ASIN: B0GJS98B1QModel: SDSP51100TANCategory: Internal Solid State Drives
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Overview
A 1TB internal NVMe SSD in the M.2 2280 form factor, built on PCIe 4.0 for a desktop build or a laptop upgrade where read speed matters for loading large project files.
This capacity point tops out at the drive's rated 7,100MB/s read and 6,700MB/s write, the fastest tier the Optimus 5100 line reaches. It uses eighth-generation QLC 3D NAND rather than TLC, which keeps cost down but can trail TLC on sustained heavy write sessions once any onboard cache fills. A downloadable dashboard app tracks drive health and firmware updates.
- Up to 7,100MB/s read, 6,700MB/s write
- PCIe 4.0, M.2 2280
- 8th-gen BiCS QLC 3D NAND
- Free SanDisk Dashboard monitoring app
Who it's for
Fits builders and laptop owners who want a fast boot or scratch drive for creative apps and games without paying for the largest capacities in the line. Less suited to workloads with constant, sustained large-file writes for hours at a stretch.
Pros and cons
- Full PCIe 4.0 speed ceiling at this capacity
- M.2 2280 fits most current desktops and laptops
- Dashboard app for monitoring and firmware
- QLC NAND, not the faster TLC used in higher-end lines
- No specs given for a heatsink or thermal throttling behavior
Performance notes
Real-world speed depends on the host slot running PCIe 4.0 and on the workload staying inside the drive's write cache. Short bursts of copying or loading hit the rated numbers; very large sustained transfers on QLC NAND typically slow down once the cache is exhausted, which is normal for this NAND type rather than a defect.
Specifications
| Brand | Sandisk |
|---|---|
| Model | SDSP51100TAN |
| Dimensions & fit | |
| HardDrive Size | 1 TB |
| Cache Memory Installed Size | 1 TB |
| Item Weight | 0.01 pounds |
| Item Dimensions L x W x Thickness | 3.1 × 0.1 × 0.9 inches |
| Capacity & performance | |
| Digital Storage Capacity | 1 TB |
| Media Speed | 6700 |
| Construction & materials | |
| Color | Multicolor |
| Compatibility & installation | |
| Connectivity Technology | M.2 2280 |
| Hard Disk Interface | PCIE X 4 |
| Hardware Connectivity | PCIE X 4 |
| Compatible Devices | Desktop, Laptop |
| Compatible Video Game Console Models | Microsoft Xbox SERIES S, Sony PlayStation 5 |
| Installation Type | Internal Hard Drive |
| Included components | |
| Unit Count | 1 |
| Warranty & support | |
| Warranty Description | 5 years |
| Other details | |
| Form Factor | M.2 2280 |
| Hard Disk Form Factor | 2.5 inches |
| Data Transfer Rate | 7100 MB/s |
| Hardware Platform | PC |
| Hard Disk Description | Solid State Drive |
| Number of Items | 1 |
| Specific Uses For Product | Business, Gaming, Personal |
| Mfr Part Number | SDSP51100TAN |
| BuiltIn Media | SANDISK Optimus 5100 NVMe Internal SSD |
| Additional Features | Power-Efficient Architecture |
Closest rivals on specs
WD_Black SN7100 NVMe SSD 1TB- Hard Disk Form Factor 2.5 vs 3.1 inches (-19%)
Crucial P310 NVMe Gen4 SSD 1TB- Item Weight 0.01 vs 0.03 pounds (-67%)
Frequently asked questions
Does the Sandisk Optimus 5100 1TB work in a PCIe 3.0 slot?
It will run in an M.2 2280 slot on PCIe 3.0, but read and write speeds will be capped at Gen3 limits rather than the rated 7,100MB/s and 6,700MB/s.
Is this drive TLC or QLC NAND?
It uses SanDisk's eighth-generation BiCS QLC 3D NAND, which is cost-effective but generally slower on sustained writes than TLC once cache is used up.
What does the SanDisk Dashboard app do?
It is a free downloadable tool for checking drive health, monitoring performance, and installing firmware updates.