$38.99 – $46.00Price range: $38.99 through $46.00
Note: Due to unprecedented shortages and rapid price increases in the 2026 NAND flash storage market, all memory card prices are for reference only and subject to requotation.
*The MOQ is 100 units, with tray packaging provided by default. Contact us for free samples and technical support.
256GB Micro SD Card Bulk
A 256GB Micro SD card is designed for high-performance devices that require fast data recording and quick loading speeds. Built to automotive-grade and industrial standards, this flash memory card delivers up to 100MB/s write speed, making it ideal for fast shooting. This card also meets UHS Speed Class 3 (U3) and Video Speed Class 30 (V30) standards, ensuring smooth, high-resolution recording. Additionally, it is A1 rated, providing faster app loading and enhanced in-app performance.
Upgrade your devices with Neomory high-quality 256GB Micro SD card, perfect for game consoles, smartphones, cameras, drones, and other portable devices. Explore our Micro SD card series today to find the best 256GB storage solution for your needs!
Specifications
Capacity: 256GB
Form Factor: Micro SDXC
Speed Class: C10/U3, C10/U3/A1, C10/U3/V30
Write Speed: 30 – 55MB/s (C10/U3), 35 – 60MB/s (C10/U3/A1), 40 – 70MB/s (C10/U3/V30)
Read Speed: 80 – 100MB/s (C10/U1), 80 – 100MB/s (C10/U3/A1), 90 – 100MB/s (C10/U3/V30)
Controller: SMI
Nand Flash Type: TLC
Nand Flash Source: Samsung, Toshiba or Micron
Operating Temperature: -25°C to 85°C (-13°F to 185°F)
Storage Temperature: -40°C to 85°C (-40°F to 185°F)
Operating Voltage: 2.7V to 3.6V
Insertion/Removal Cycles: 10,000
Dimensions: 15 × 11 × 1 mm (0.59″ × 0.43″ × 0.04″)
Weight: 0.4g (0.01oz)
Warranty: 5-Year Limited Warranty
Verified Speed means that the real read and write performance of our memory cards matches the stated specifications, not just short-term “peak” speeds. By professionally matching controller chips with branded NAND flash, our products avoid sudden speed drops, write interruptions, and performance instability commonly caused by aggressive caching strategies or low-quality components. Every production batch undergoes real-world read and write verification, with a strong focus on sustained performance during continuous writing and repeated read/write cycles.
True Capacity means that the nominal capacity of a memory card accurately reflects its real, usable storage space. It does not mean “zero difference”; due to different calculation methods, the usable space shown on a computer is slightly less than the nominal value, which is normal and within industry standards. Neomory memory cards undergo strict capacity verification tests such as H2 and H5 to ensure stable read and write performance and full data integrity, even during long-term use or when the card is filled close to its maximum capacity.
Stable Reliability means that a memory card can deliver consistent, stable performance during long-term, repeated use. In many applications, stability matters more than extreme speed. We use mature controller solutions combined with branded NAND flash, and carry out basic stability verification and testing on every production batch. This helps minimize the risks of controller faults, inconsistent flash components, and compatibility issues, ensuring reliable performance.
Customization means we offer flexible solutions ranging from basic OEM services to fully customized storage products. We provide complete OEM and ODM services, including logo branding, casing and packaging design, and customized labeling specifications. Neomory also supports deep customization of key storage parameters such as capacity, speed class, controller solutions, flash memory type, and compatibility strategies. In addition, we provide data services such as data preloading and read-only locking based on actual application requirements and device usage scenarios.
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