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Rexstor Performance microSD Express Memory Card — 256GB / 512GB

High-speed microSD Express storage with PCIe Gen3 x1 and NVMe 1.3, up to 900 MB/s read and 710 MB/s write. 256GB / 512GB configurations. Designed for compatible devices including Nintendo Switch 2. OEM options available.

High SpeedCheck speed class
Video ClassModel dependent
4K RecordingVerify write speed
Shock / VibrationSee datasheet
TemperatureRating to confirm
WarrantyTerms on request
High SpeedCheck speed class
Video ClassModel dependent
4K RecordingVerify write speed
Shock / VibrationSee datasheet
TemperatureRating to confirm
WarrantyTerms on request
Transfer SpeedBy NVMe reference
NVMe InterfaceCompatible M.2 slot
PC UpgradeBoard dependent
Solid-StateNo moving parts
Thermal LimitsBy configuration
WarrantyTerms on request
SSD PerformanceBy SATA reference
SATA InterfaceData and power
PC Upgrade2.5-inch bay
Solid-StateNo moving parts
Thermal LimitsBy configuration
WarrantyTerms on request
USB-CCheck port protocol
Transfer SpeedHost dependent
Portable StorageExternal form factor
Solid-StateNo moving parts
TemperatureBy configuration
WarrantyTerms on request
USB StorageConnector by SKU
Transfer SpeedModel dependent
CapacityChoose a variant
CompatibilityCheck host / format
TemperatureBy configuration
WarrantyTerms on request
DDR4UDIMM module
Memory SpeedBoard dependent
Desktop PCCheck supported DIMM
CapacityChoose a variant
TemperatureBy configuration
WarrantyTerms on request

Description

Overview

The Rexstor Performance microSD Express family is designed for high-speed removable storage in compatible devices, including Nintendo Switch 2. Built around a PCIe Gen3 x1 interface and the NVMe 1.3 protocol, it combines high sequential transfer rates with compact microSD dimensions.

Available catalogue capacities: 256GB and 512GB. Select the capacity that matches your storage requirements; exact Rexstor-branded configurations and commercial availability are subject to confirmation.

Key Features

  • Up to 900 MB/s sequential read and up to 710 MB/s sequential write (manufacturer laboratory maxima).
  • PCIe Gen3 x1 interface with NVMe 1.3 protocol.
  • Operating temperature: -25°C to +85°C.
  • Garbage collection technology for consistent storage performance.
  • Water-, shock- and X-ray-resistant construction (manufacturer claims; test standards not provided).
  • OEM customisation options: chip solution, branded logo, label and packaging.

Technical Specifications

Product Family Performance
Product Type microSD Express memory card
Capacities 256GB, 512GB
Interface PCIe Gen3 x1
Protocol NVMe 1.3
Sequential Read (maximum) 900 MB/s
Sequential Write (maximum) 710 MB/s
Operating Temperature -25°C to +85°C
Operating Voltage 1.8V / 3.3V
Speed / Performance Markings Class 10 / U1 / U3 / V30 / A2 (as stated in OEM catalogue; applicability to Express mode requires validation)
Garbage Collection Supported (manufacturer statement)
Water Resistance Claimed; rating not specified
Shock Resistance Claimed; rating not specified
X-ray Resistance Claimed; rating not specified
Device Compatibility Nintendo Switch 2 (stated in OEM catalogue); compatible host required
OEM Services Custom chip solution, logo, packaging and label

Capacity Options

Planned Rexstor Reference Capacity Interface
RX-MSE-256G 256GB PCIe Gen3 x1 / NVMe 1.3
RX-MSE-512G 512GB PCIe Gen3 x1 / NVMe 1.3

Applications

High-performance portable storage, supported handheld gaming consoles, and other devices implementing microSD Express.

Important Notes

Performance values are based on internal OEM laboratory tests and may vary with host device, test conditions, capacity and workload. Capacities and proposed Rexstor part numbers require final commercial and engineering validation. The source catalogue does not state NAND type, controller, endurance/TBW, MTBF, warranty, or independent resistance test methods.

Related Products

Need a custom solution?

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Downloads

Request documentation for this exact product reference.

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Frequently Asked Questions

What devices are compatible?

Check interface, supported capacities and the host specifications. Contact us with the exact host model for guidance.

What is the warranty period?

Warranty terms depend on the product and purchase. Contact support with your product reference and proof of purchase.

Can I use this for 4K video recording?

Check the sustained write speed and required video speed class for your camera and recording mode.

Do you offer custom branding (OEM)?

Contact the team to discuss feasibility, volumes and specifications.

What is the operating temperature range?

Refer to the datasheet for the exact reference and revision.