SanDisk

SanDisk SDMSM2M-004G-B35 4GB M2 Memory Stick Micro - Mobile Storage

4.5 (421 reviews)
4 GB Memory

SanDisk 4GB Memory Stick Micro (M2) expands storage on Sony Ericsson phones and Memory Stick Pro Duo devices.

$29.57*
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*Price sourced from Amazon.com. Last updated:Jun 03, 2026.Price and availability are subject to change.

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Overview

The SanDisk SDMSM2M-004G-B35 is a 4GB Memory Stick Micro (M2) card designed primarily for Sony Ericsson mobile phones and other devices that accept the M2 format. Built with SanDisk's MLC NAND flash technology, the card provides dependable storage for documents, videos, games, and digital photos. Its tiny form factor slides directly into M2-compatible slots, and with an adapter, it can also be used in any Memory Stick Pro Duo device, extending its usefulness to the PSP and certain Sony cameras.

The card includes a controlled ejection design that makes it easier to remove from tight card slots — a practical touch given how small M2 cards are. It also supports Sony's MagicGate encryption technology, allowing it to store and play DRM-protected music and media on compatible devices. While the M2 format has been largely superseded by microSD and other standards, this card remains a useful option for anyone still relying on older Sony Ericsson hardware or maintaining a legacy device that requires this specific format.

Key Features

SanDisk 4 GB Memory Stick Micro (M2) Memory Card General Features: 4 GB capacity

SanDisk MLC NAND flash technology

Works with any new Sony Ericsson mobile phone and any Memory Stick Pro Duo compatible device

Controlled ejection design allows for easier removal Sony MagicGate encryption technology support

40 MHz maximum interface/bus performance

Specifications

Brand
SanDisk
Model
SDMSM2M-004G-B35
Capacity
4 GB
Format
Memory Stick Micro (M2)
Flash Technology
SanDisk MLC NAND
Encryption
Sony MagicGate
Compatibility
Sony Ericsson phones, Memory Stick Pro Duo devices (with adapter)
Ejection
Controlled ejection design

Pros & Cons

👍 Pros

  • Compact M2 form factor fits directly into Sony Ericsson phone slots without adapters
  • MLC NAND flash technology provides reliable data storage
  • Controlled ejection design makes the tiny card easier to remove safely
  • MagicGate encryption support enables use with DRM-protected content

👎 Cons

  • 4GB capacity is very limited by modern storage standards
  • M2 format is largely discontinued and incompatible with most current devices
  • Requires an adapter to work in standard Memory Stick Pro Duo slots
  • Read and write speeds are slow compared to current memory card formats

Frequently Asked Questions

It works with Sony Ericsson mobile phones that accept Memory Stick Micro (M2) cards and any Memory Stick Pro Duo compatible device when used with an adapter.
Yes, it supports Sony MagicGate encryption technology, which enables DRM-protected content to be stored and played on compatible devices.
The SanDisk M2 card uses SanDisk MLC NAND flash technology, which provides a balance of storage density and reliability.
The card features a controlled ejection design that allows for easier, more secure removal from the card slot, reducing the risk of dropping the tiny card.