Integral Memory 8 GB SDHC SD Card, Class 4

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Integral Memory 16 GB SDHC SD Card, Class 10, UHS-1 U1

Verbatim 32 GB MicroSDHC Micro SD Card, Class 10

Integral Memory 32 GB SDHC SD Card, Class 10, UHS-1 U1

Transcend 32 GB SDHC SD Card, Class 10

Integral Memory 4 GB SDHC SD Card, Class 10

Transcend 16 GB SDHC SD Card, Class 10

Verbatim 32 GB SDHC SD Card, Class 3

Verbatim 32 GB SDHC SD Card, Class 10


SD cards, short for Secure Digital cards, are removable, compact memory cards widely used for data storage in various portable devices, including digital cameras, smartphones, tablets, and laptops. Many PCs and laptops come with built-in SD card slots, and for those that don't, card adapters are readily available. The most compact of the SD card family is the Micro SD card (often referred to as microSD), commonly used in smaller devices like smartphones and action cameras.

## **Benefits of SD Cards**

### **Ease of Assembly**

SD cards are incredibly easy to use. They simply plug into a compatible slot on your device, making them a convenient and user-friendly storage solution. Simply insert the SD card into the designated slot to expand the storage capacity of your device.

### **Reliability**

Designed for reliability and durability, SD cards ensure that your data is safe and accessible across various applications and environments.

### **Versatility**

SD cards are versatile storage media compatible with a wide range of devices, from cameras and smartphones to computers and industrial equipment. This versatility makes them a popular choice for various data storage needs.

### **Cost-Effectiveness**

As a cost-effective solution for expanding storage capacity, SD cards provide a good balance of performance and affordability, making them accessible to a wide range of users.

### **Modular Design**

The modular design of SD cards allows for easy upgrades and replacements. As your storage needs grow, you can simply upgrade to a higher-capacity SD card without replacing your device.

## **How to Choose an SD Card**

### **Performance**

The performance of an SD card, particularly its speed and capacity, is crucial for optimal device operation. Look for cards with fast read and write speeds, especially if you're capturing high-resolution images or videos. Additionally, choose a capacity that aligns with your storage needs and the capabilities of your device.

### **Intended Use**

Consider the intended use of the SD card when making your selection. Different devices and media formats may have specific requirements. For instance, if you're using the SD card in a high-performance camera for 4K video recording, you'll need a card with a higher speed class and capacity than if you were simply storing text documents.

### **Durability**

Durability is an important factor to consider, especially if you'll be using the SD card in challenging environments or demanding applications. Look for cards with features like shock resistance, water resistance, and temperature resistance to ensure data integrity and longevity.

### **Security**

If data security is a concern, consider SD cards with built-in security features, such as password protection or encryption. These features help to protect your data from unauthorised access or tampering.

## **Types of SD Cards**

There are several types of SD cards available to cater to various [data management](https://sg.rs-online.com/web/content/discovery/ideas-and-advice/the-role-of-minisd-card-readers-and-microsd-cards) needs, ranging from standard SD cards to the more compact microSD format.

### **Standard SD Card**

Standard SD cards are the most common type, widely used in digital cameras, camcorders, and other consumer devices. They offer a balance of capacity, performance, and affordability.

### **SDHC and Micro SDHC Card**

SDHC (Secure Digital High Capacity) cards offer higher storage capacities than standard SD cards, ranging from 4GB to 32GB. Micro SDHC cards provide the same high capacity in a smaller form factor, making them ideal for smartphones, tablets, and other portable devices.

### **SDXC and Micro SDXC Card**

SDXC (Secure Digital Extended Capacity) cards offer even higher storage capacities than SDHC cards, ranging from 32GB to 2TB. For devices like action cameras and drones that require large storage space with a smaller SD card, Micro SDXC cards are an ideal solution. 

### **SDUC and Micro SDUC Card**

SDUC (Secure Digital Ultra Capacity) and Micro SDUC cards offer the highest storage capacities, exceeding 2TB, making them suitable for data-intensive applications like 8K video recording and high-resolution photography. 

## **Speed Ratings for SD Cards**

SD cards come with different speed ratings, indicating their data transfer speeds. These ratings are essential for ensuring smooth performance, especially for demanding applications like video recording.

### **Class 2**

Class 2 SD cards have a minimum write speed of 2MB/s, suitable for standard definition video recording and general-purpose data storage.

### **Class 4**

With a minimum write speed of 4MB/s, Class 4 SD cards are suitable for high-definition video recording and faster data transfer.

### **Class 6**

Class 6 SD cards offer a good balance of performance and affordability for various applications with a higher minimum write speed of 6MB/s. 

### **Class 10**

For more intensive uses like full HD video recording and burst photography, Class 10 SD cards’ minimum write speed of 10MB/s are more suitable.

### **UHS-I**

UHS-I (Ultra High Speed Phase I) SD cards offer faster data transfer speeds than Class 10 cards, with theoretical maximum transfer speeds of up to 104MB/s, making them ideal for 4K video recording and high-speed photography.

### **UHS-II**

For the fastest data transfer speeds, UHS-II (Ultra High Speed Phase II) SD cards deliver a theoretical maximum transfer speed of up to 312MB/s. These cards are suitable for professional video recording, high-resolution photography, and other demanding applications.

## **Industrial Applications of SD Cards**

While commonly associated with consumer electronics, industrial SD cards play an essential role in various commercial and industrial applications.

### **Consumer Electronics**
- **Digital Camera:** SD cards are the primary storage media for digital cameras, allowing users to capture and store high-resolution photos and videos.
- **Camcorders:** Used in camcorders to record video footage, SD cards offer high capacity and reliable storage for capturing memories and events.
- **Smartphones and Tablets:** Micro SD cards are commonly used in smartphones and tablets to expand storage capacity for apps, photos, videos, and other data.
- **MP3 Players:** For music files in MP3 players, SD cards are a portable storage option for users to enjoy their music libraries on the go.
- **Portable Gaming Consoles:** SD cards are used in portable gaming consoles to store game data, downloadable content, and save files, enhancing the gaming experience.
- **Dashcams:** Many vehicles use dashcams to record video footage of driving incidents. The data in these SD cards provide valuable evidence in case of accidents or disputes.

### **Industrial Uses**
- **Data Logging:** Industrial SD cards are used in [data loggers](https://sg.rs-online.com/web/c/test-measurement/data-acquisition-logging/data-loggers/) to record and store data from various sensors and instruments, such as temperature, pressure, and humidity. This data can be used for monitoring, analysis, and process control in various industrial settings, including medical devices and manufacturing equipment.
- **Programme Storage:** SD cards are used to store programmes and configuration files for industrial equipment, such as PLCs and CNC machines, allowing for easy updates and modifications.
- **Data Configuration:** In industrial control systems, SD cards are used for data configuration and backup to provide a reliable and portable storage medium for critical system settings and parameters.

### **Internet of Things (IoT) Devices**
- **Data Storage:** SD cards are increasingly used in [Internet of Things](https://sg.rs-online.com/web/content/discovery/ideas-and-advice/iiot-guide) devices for data storage and logging, enabling edge computing and data analysis in various applications, such as smart homes, industrial automation, and environmental monitoring.
- **Firmware Updates:** SD cards provide a convenient way to update firmware in IoT devices, ensuring that devices are running the latest software versions and security patches. This is particularly important for critical devices, such as those used in medical or industrial settings.

### **Telecommunications**
- **Router Configuration:** In some routers for configuration and firmware updates, SD cards provide a convenient way to manage and maintain network devices.
- **Network Device Data:** SD cards can be used to store data logs and configuration files for network devices, such as switches and firewalls, providing backup and recovery options.

### **Automotive**
- **In-Vehicle Infotainment Systems:** Often used in in-vehicle infotainment systems for storing music, maps, and other multimedia content, SD cards are instrumental in enhancing the driving experience.
- **Telematic Systems:** Telematics systems record vehicle data, such as location, speed, and engine performance, for fleet management, insurance purposes, and vehicle diagnostics. SD cards help to store and manage that data.

### **Other Applications**
- **Security Cameras:** SD cards are commonly used in security cameras to store recorded video footage, providing a local backup and enabling retrieval of footage for security purposes.
- **GPS Devices:** Used in GPS devices to store maps, routes, and other navigational data, SD cards provide offline access to maps and enhance navigation capabilities.

## **Buy SD Cards from RS Singapore**

RS Singapore is a trusted supplier and distributor of computer and data storage products, sourced from reputable brands, such as [Transcend](https://sg.rs-online.com/web/b/transcend/), [Kingston](https://sg.rs-online.com/web/b/kingston/), and [ATP](https://sg.rs-online.com/web/b/atp/). Whether you're looking for a [USB cable](https://sg.rs-online.com/web/c/cables-wires/computer-cables/usb-cables/) or a micro SD card in Singapore, you'll find what you need in our comprehensive selection of items. 

Browse our range of products on our online site and buy the SD card that fits your requirements. With flexible delivery options available, you can look forward to receiving your items at your convenience. To learn more about our delivery options, please visit our [delivery information page](https://sg.rs-online.com/web/content/support/all-articles/delivery).



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