Mini SD Card | What Is Mini SD Card, How to Format It

Updated by

Oliver 

Written by

Cedric 

Updated on Mar 29, 2025

What Is a Mini SD Card 

Mini SD card, short for Mini Secure Digital Memory Card, is derived from the SD card, and its performance is not much different from the traditional SD card. Mini SD card, like the SD card, has a data transfer speed of 2MB per second and a hardware data write protection switch, which can avoid the risk of accidental deletion of stored content. 

The features of the Mini SD card are: 

• Small size. The volume of Mini SD card volume is only 21.5×20x1.4mm, only 37% the size of an SD card.
• Stable performance. Mini SD card can be used with a dedicated adapter card, fully compatible with a standard SD card slot. 
• Low power consumption design. It is more suitable for mobile communication equipment than SD cards.

What Is Mini SD Card Used for

Like other removable flash memory cards, a Mini SD card can be used on portable devices such as cameras or smartphones to store various types of files, including photos, videos, music, documents, or programs. You can use a Mini SD card in an SD card slot via a card reader. In this way, you can connect your Mini SD card to the computer to transfer files.

Mini SD Card Adapter/Reader

The Mini SD card was jointly developed by Panasonic and SanDisk. In order to make it easier for more users to switch between different memory cards and use mini SD, SanDisk also specially introduced an SD card adapter or reader, which can be used with digital cameras, PDAs, and MP3 music players that currently use SD cards.

Mini SD card has the same read-and-write performance and large capacity as an SD memory card. It is fully compatible with standard SD cards and can be used as a normal SD card through the included SD card adapter.  

How to Format Mini SD Card on Windows 10

You can easily format a Mini SD card on Windows 10 the following two methods.

Method 1. Format Mini SD Card with a Disk Management Tool

To securely format the Mini SD card on Windows 10, you can resort to EaseUS Partition Master - user-friendly and advanced disk management software. This software enables you to efficiently format and set up a Mini SD card with desired file system in simple clicks.

Free download this partition manager and follow the steps below to format the Mini SD card.

Step 1. Find your SD card and right-click the partition you want to format and choose "Format".

Step 2. Set a new partition label, file system (NTFS/FAT32/EXT2/EXT3/EXT4/exFAT), and cluster size to the selected partition, then click "OK".

Step 3. Click "Yes" on the pop-up window to continue.

Step 4. Click the "Execute 1 Task(s)" button on the toolbar, then click "Apply" to start formatting your SD card.

Other Features in EaseUS Partition Master You May Also Like:

Method 2. Format Mini SD Card with a Disk Management Tool

Also, check out how to format a Mini SD card with Windows File Explorer.

Step 1. Connect the Mini SD card to your computer with an SD card adapter.

Step 2. Press Win + E keys to open Windows Explorer. Right-click your Mini SD card, and then choose "Format".

Step 3. Specify the file system and set a new label for your Mini SD card. Click "Start" and "OK" to confirm the formatting.

How to Format Mini SD Card on Mac

The following steps show how to format a Mini SD card on Mac by using Disk Utility.

Step 1. Connect your Mini SD card to your Mac using a Mini SD card reader.

Step 2. Run Disk Utility on your Mac.

Step 3. Select your Mini SD card. Choose "Erase" and then select "Format".

Step 4. Choose a file system format. If your Mini SD card is 32GB or larger, choose exFAT. If it is 32GB or smaller, choose FAT32.

Step 5. Click "Erase" when a pop-up message occurs.

Mini SD Card VS Micro SD Card VS SD Card, What Are the Differences

Is a Mini SD card the same as a Micro SD card? No, Mini SD card and Micro SD card are two types of cards derived from SD memory cards. We will talk about the differences about regular SD card, Mini  SD card, and Micro  SD card from the following points.

• Physical Size: The size of an ordinary SD card is about 1.25 × 0.95 inches, the size of a Mini SD card is 0.87 × 0.79 inches, and the size of a Micro SD card is 0.43 × 0.59 inches. Both Mini SD card and Micro SD card can be used as SD cards through the card reader or card adapter. But the big SD card can't fit into a small card slot.
• Storage Capacity: Different SD cards follow different standards, which will affect their maximum storage capacity. The original SD card standard allows a maximum capacity of 2GB, while a card using the SD high-capacity standard can have a maximum capacity of 32GB. The SD extended capacity standard allows capacities between 32GB and 2TB. There are three sizes of SD card and SDHC card. However, SDXC cards can only be used as full-size or Micro SD cards.
• File System: According to different standards, different capacity, SD card can choose different file systems, some support FAT16, some support FAT32, some also support exFAT.  If your SD card’s capacity is under 32GB, you can choose FAT16 or FAT32. If the capacity is larger than 32GB, you can choose exFAT.
• Cost: Generally speaking, smaller SD cards are more expensive than larger ones. This is largely due to higher manufacturing costs, as smaller components require higher manufacturing precision. However, the card size usually has a greater impact on cost than the size itself. For example, a full-size Class 10 SDXC card may be more expensive than a Class 2 Micro SDHC card, even though the Class 2 card is physically smaller.

Mini SD Card Overview

There are three kinds of SD cards, SD card, Mini SD card, and Micro SD card, also called TF card. They are just different in size and compatible with each other.

The Mini SD card is small in size, stable in performance, and relatively common. As a slender multimedia card, the Mini SD card is widely used in the mobile phone market, such as Motorola MPX100, Panasonic X700, BQ S700, and other brands of mobile phone products that support it. At the same time, it can be used as a standard SD card through an expansion card, which is very convenient. 

When you get desired Mini SD card and you want to set up the card for specific usage, EaseUS Partition Master is a reliable tool that you can trust and rely on.

FAQs About Mini SD Card

If you have more questions on managing and reading Mini SD card, follow the questions and find answers here:

1. How do I access my mini SD card?

• Unplug or remove the Mini SD card from your storage device.
• Insert the Mini SD card to a Mini SD card adapter and connect to your PC.
• Open File Explorer and check the content in your Mini SD card.

2. How can I read my mini SD card without adapter?

• Insert the Mini SD card to your storage devices or Media player.
• Connect the storage device or Media Player to your computer via a USB connection cable.
• Open File Explorer and check the SD card content.

3. What is the best format for mini SD card?

• For gaming, set FAT32 to Mini SD card.
• For data transfer, set exFAT or NTFS to Mini SD card.
• For using on both Windows and Mac computers, set FAT32 or exFAT to Mini SD card.