A Micro SDU3 Card, also known as a Micro SD Card with a U3 speed class, is a type of Secure Digital (SD) memory card that conforms to the Ultra High Speed (UHS) standard, specifically the UHS-I (Ultra High Speed Class 1) specification. However, the "U3" nomenclature is not an official speed class designation from the SD Association. Instead, it is often used by manufacturers to indicate that the card has a minimum write speed of 30MB/s, which is faster than the standard U1 speed class.

Here are some key features of a Micro SDU3 Card:

• The cards have a minimum write speed of 30MB/s. They are for high-performance uses. These include 4K video recording, high-res photography, and fast data transfer.
• UHS-I Interface: Despite the "U3" label, these cards still use the UHS-I interface. It supports higher data rates than the standard SD interface.
• Micro SDU3 Cards are available in various capacities. These are typically from 32GB to 256GB or more. They allow users to store lots of high-quality media.
• Application Compatibility: It's great for use with action cameras and drones. Also, with high-end smartphones, tablets, and other UHS-I devices that need fast write speeds for top performance.
• File System: These cards come formatted with exFAT. It works with many devices and supports large files. So, it's good for high-definition video and other large files.

Speed Micro SD Card Same as UHS-I, Micro SDHC Card UHS-III delivers pro speed by UHS bus interface. Memory cards in this grade can reach 30MB/s by write, but sometimes MRT can produce sources with 50MB/s. The transferring speed also depends on the controller and flash. As we only use original Samsung, SanDisk and Micron flash, the quality is stable and durable. U3 is a nice option as if you expect move thousands of photos in minutes. Undoubtedly, ultra-speed is a charming reason for ordering them. As it grants you freedom to do fast shoot by DSLR cameras, you are free from time lag. Besides it, high performance and large capacity of this rank, Micro SD U3 card can perfectly store 4K video.

What makes the U3 MicroSD super-fast? It is UHS bus interface. This interface is a direct effect on speed, otherwise the maximum theoretical read speed cannot be as high as 150mb/s. As if wholesale MicroSD card builds with this interface, you are joining a surfing world.

MRT offers Micro SDXC Micro SD card 64GB, 128GB, 256GB, 512GB and 1TB in this range. These bulk Micro SDXC cards are almost top level. With extreme speed, people will be in the pursuit of large capacity. Therefore, the capacity of Micro SD cards is no less than 64GB. Otherwise, it is easily getting full in storage due to the ultra speed.

Although MicroSDXC cards in this group presenting high speed and capacity, the price is not the highest one. MRT is a manufacturer for memory cards over 15 years. To support our valuable clients, we set the lowest discount online. Moreover, there is 5 years warranty for them. Basically, there is no failure rate for U3 cards. As they are produced with best flash, rigorous test, and stable BOM. Please contact us for free sample shipping.

High-Speed Data Transfer Imagine transferring thousands of photos in mere minutes. That’s the power of U3 speed. The high-speed data transfer capability makes these cards indispensable for professional photographers and videographers.
Large Storage Capacity With capacities up to 1TB, you won't find yourself constantly juggling files to free up space. Whether it’s for storing high-resolution media files or extensive software data, you have the storage you need.
Versatility in Device Compatibility Micro SDXC U3 cards aren’t picky. They are compatible with a broad range of devices, including DSLRs, drones, smartphones, tablets, and even some laptops. This universality ensures you get the bang for your buck.

Still on the fence about bulk purchasing? Let’s explore why bulk buys could be a game-changer.
Cost-Effectiveness

When you buy in bulk, you’re often privy to discounts that wouldn't be available with single unit purchases. This means lower costs per card and higher margins for your business.

Ensuring Stock Availability

Having a bulk supply ensures that you always have enough in stock to meet demand. This is crucial for businesses that sell tech products or incorporate these cards into their devices.

Simplifying Logistics

Managing procurement is simpler when you buy in bulk. Fewer orders mean less paperwork and shipping costs, paving the way for streamlined operations.