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Green rectangular M.2 2280 SSD with black label and gold edge connector

MSI

MSI SM461N1TB M.2 2280 1TB internal SSD

SKU CH-BC0H-NDJRC MPN SM461N1TB

A 1 TB M.2 2280 PCI-Express 4.0 x4 drive delivering up to 5000 MBps read and 4200 MBps write with 3D NAND and HMB caching

  • Used ForConsumer
  • Form FactorM.2 2280
  • Capacity1TB
  • Memory Components3D NAND
  • InterfacePCI-Express 4.0 x4
  • ControllerPHISON E21T

Style Without Heatsink

Options 1TB M461

  • Sequential reads up to 5000 MBps accelerate load times
  • Sequential writes up to 4200 MBps speed large file transfers
  • PCIe 4.0 x4 with NVMe 1.4 delivers high bandwidth
  • 900 TBW endurance rating supports heavy write workloads
  • Controller balances performance with 1500000-hour MTBF
  • Pyrite encryption protects stored data without software overhead

M461 Series 1TB PCIe 4.0 SSD

The MSI M461 SM461N1TB is a 1TB internal solid-state drive in the M.2 2280 form factor. It connects via a PCIe 4.0 x4 interface and uses 3D NAND flash with a Phison E21T controller. The drive operates without a DRAM cache, relying on host memory buffer technology.

For desktop and notebook upgrades needing fast

This drive suits users who want up to 5000 MBps read and 4200 MBps write performance for gaming, content creation or professional workloads. It supports the NVMe 1.4 standard and offers Pyrite encryption for data security. Buyers needing sustained heavy write endurance beyond 900 TBW or a DRAM cache should consider other models.

MSI Center and Actiphy software bundle

MSI Center provides drive health monitoring, performance metrics and data migration tools in one application. Actiphy adds backup and restore functionality to protect against accidental data loss. Both utilities are supplied by the manufacturer to simplify drive management and improve long-term reliability.

Highlights

  • Sequential reads up to 5000 MBps accelerate load times
  • Sequential writes up to 4200 MBps speed large file transfers
  • PCIe 4.0 x4 with NVMe 1.4 delivers high bandwidth
  • 900 TBW endurance rating supports heavy write workloads
  • Controller balances performance with 1500000-hour MTBF
  • Pyrite encryption protects stored data without software overhead

Specifications

BrandMSI
SeriesM461
Part NumberSM461N1TB
Used ForConsumer
Form FactorM.2 2280
Capacity1TB
Memory Components3D NAND
InterfacePCI-Express 4.0 x4
ControllerPHISON E21T
CacheNo DRAM (HMB)
EncryptionPyrite (Encryption, Data Security)
Max Sequential ReadUp to 5000 MBps
Max Sequential WriteUp to 4200 MBps
MTBF1,500,000 hours
Shipping weight0.05 kg
Package size163 × 84 × 20 mm

Other versions of this model

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Questions about this item

Will this M.2 2280 drive fit in my laptop's PCIe 4.0 slot?

The drive uses the M.2 2280 form factor and a PCIe 4.0 x4 interface, so it fits any standard M.2 key-M slot wired for PCIe.

Does the drive need a separate DRAM cache for sustained write performance?

It operates without a dedicated DRAM cache and uses Host Memory Buffer (HMB) technology instead, which reserves a portion of system RAM for mapping tables.

What software tools are available for drive health monitoring and data migration?

MSI Center provides real-time health and performance monitoring, while the included Actiphy software handles backup, restore and data migration tasks.

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