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Green printed circuit board with black controller and memory chips, M.2 2280 form factor

Ridata

Ridata A801 500GB NVMe 1.4 PCIe 4.0 x4 M.2 2280 internal SSD

SKU CH-48N7-D341N

A 500 GB NVMe internal SSD with PCIe 4.0 x4 interface delivering up to 5000 MB/s read and 2700 MB/s write speeds

  • Device TypeInternal Solid State Drive (SSD)
  • Used ForIndustrial
  • Form FactorM.2 2280
  • Capacity500GB
  • Memory ComponentsPCIe
  • InterfacePCI-Express 4.0 x4
  • Sequential read up to 5000 MB/s for fast load times
  • Sequential write up to 2700 MB/s for quick file saves
  • PCIe 4.0 x4 interface delivers nearly double the bandwidth of PCIe 3.0
  • NVMe 1.4 with HMB technology reduces latency for smoother multitasking
  • M.2 2280 form factor fits laptops and desktops for easy upgrades

500 GB PCIe 4.0 NVMe 1.4 SSD

The Ridata A801 is a 500 GB internal solid-state drive built on the M.2 2280 form factor. It uses the PCIe 4.0 x4 interface and the NVMe 1.4 protocol to deliver high-speed storage for desktops and laptops. The drive targets users who need responsive performance for everyday workloads and content creation tasks.

PCIe 4.0 bandwidth ceiling

Sequential reads reach up to 5000 MB/s and sequential writes up to 2700 MB/s on this model. The PCIe 4.0 x4 link provides nearly double the bandwidth of PCIe 3.0, so the drive can sustain those speeds only when the host platform supplies a compatible PCIe 4.0 slot. On a PCIe 3.0 system the same drive will be limited to the older interface’s lower throughput ceiling.

M.2 2280 with HMB and SLC cache

The single-sided M.2 2280 module fits standard motherboard and laptop slots without extra cables or brackets. Host Memory Buffer technology lets the controller borrow a portion of system DRAM for mapping tables, reducing latency during mixed workloads. An onboard SLC cache absorbs burst writes before data is folded into the 3D NAND array, keeping performance consistent during heavy file transfers.

特長

  • Sequential read up to 5000 MB/s for fast load times
  • Sequential write up to 2700 MB/s for quick file saves
  • PCIe 4.0 x4 interface delivers nearly double the bandwidth of PCIe 3.0
  • NVMe 1.4 with HMB technology reduces latency for smoother multitasking
  • M.2 2280 form factor fits laptops and desktops for easy upgrades

仕様

BrandRiDATA
SeriesA801
ModelA801
Part NumberRDT-A801-500G
Device TypeInternal Solid State Drive (SSD)
Used ForIndustrial
Form FactorM.2 2280
Capacity500GB
Memory ComponentsPCIe
InterfacePCI-Express 4.0 x4
ProtocolNVMe 1.4
Max Sequential ReadUp to 5000 MBps
Max Sequential WriteUp to 2700 MBps
FeaturesHost Memory Buffer (HMB) technology
Package ContentSLC Cache NVMe 1.4 PCIe Gen 4x4 M.2 2280 SSD Internal Solid State Drive

この商品に関する質問

Should I pick the 500 GB or 1 TB version of the A801 for my workload?

The 500 GB model delivers up to 5000 MB/s read and 2700 MB/s write, while the 1 TB model keeps the same 5000 MB/s read but reaches 4800 MB/s write, so choose the larger capacity if sustained write throughput matters.

What does the 5000 MB/s read figure actually deliver in my system?

That sequential read ceiling applies to large, continuous transfers on a PCIe 4.0 x4 slot; everyday mixed workloads will run lower, but the NVMe 1.4 protocol and Host Memory Buffer help keep latency down during multitasking.

Does the PCIe 4.0 x4 interface limit performance on a PCIe 3.0 motherboard?

Yes — the drive will negotiate down to PCIe 3.0 x4, capping sequential throughput at roughly half the 5000 MB/s read and 2700 MB/s write potential.

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