Most digital devices have basic internal storage. Smartphones, for example, have minimal storage available on their SIM cards. Other devices like point and shoot cameras and mirrorless cameras require an external storage card – this is why SDHC cards are so important.
Firstly, SDHC cards increase the minimal internal storage capacity of certain devices. Secondly, they are vital for DSLR cameras and other types of cameras. Finally, they provide a simple means of transferring files from external devices to a computer or laptop.
SDHC stands for Secure Digital High Capacity. This specification is the next iteration of the standard SD card format and offers higher storage capacity. Where SD Cards have a maximum capacity of 2GB, SDCH cards can store up to 32GB of data.
If you need an SDHC card for an external device, check the read speed and class rating. Read speed determines how quickly files are read when interacting with the card. Class rating is also important as this partially determines transfer speeds.
1. SanDisk Ultra SDHC UHS-I (Overall Winner)

As our overall winner of SDHC cards, the SanDisk Ultra is a top-range model that is unbelievably priced. This SDHC card is an absolute steal. Furthermore, you are guaranteed of the best quality.
As a Class 10, UHS-I SDHC card, transferal and read speeds are fantastic. Transfer speeds reach up to 100MB/s, whilst read speeds reach up to 90MB/s.
In addition to this, SanDisk provides a 10-year manufacturer warranty should the device be faulty. Moreover, this card is resistant to extreme temperatures and is also shockproof and waterproof.
If you are looking for a durable, high-quality SDHC card, the SanDisk Ultra is one of the best choices available for performance and value. Moreover, it is available as a 32GB SDHC card, or 64GB, 128GB, and 256GB SDXC variants.
2. Lexar Professional 2000x SDHC/SDXC UHS-II

The Lexar Professional range offers amazing transfer speeds of up to 300MB/s (or 2000x, hence the name). Furthermore, this SDHC card has brilliant read speeds too. This is achieved via the use of UHS-II technology.
Despite using UHS-II technology, the SDHC card is backward compatible with UHS-I devices. It is advised, however, to use a UHS-II compatible device to utilize the excellent read speeds of this card.
As with other Lexar models, the Professional 2000x SDHC card has undergone intense testing. This means it has amazing quality, reliability, and durability.
Due to the high transfer and read speeds, this card is suitable for use with high-resolution photography, and 4K HD video.
3. Transcend SDHC Class 10 UHS-1

This Transcend SDHC card is a budget option that still offers excellent reliability and performance. It is a Class 10 card featuring UHS-I technology. Transferal speeds reach a maximum of 90MB/s (or 600x).
Moreover, it operates at a lower power consumption which means it enables your device’s battery to last longer. It is also fully compatible with all devices that can take SDHC or SDXC cards.
As an SDHC card, this model is available as an 8GB, 16GB, or 32GB capacity device. Alternatively, it is available as a 64GB and 128GB SDXC card.
4. PNY Elite Performance SDHC Class 10 UHS-1

The PNY Elite Performance range of SDHC cards offers fantastic transferal speeds and a high-quality build. This particular model is available as a 32GB SDHC card, but also as a 64GB, 128GB, or 256GB SDXC card.
This is a Class 10, UHS-I specification SDHC card and has transferal speeds of up to 95MB/s. Additionally, the card has a lifetime warranty.
Furthermore, the PNY Elite Performance card has been extensively tested. It is shockproof, temperature proof, magnet proof, and waterproof. This makes it extremely durable and reliable.
5. SanDisk SDHC Class 4

This second SanDisk entry is a budget option suitable for use in smartphones and point and shoot cameras. It is a Class 4 SDHC card which means it does not have as fast transfer and read speeds as some of the other models in this list.
Nonetheless, it still has excellent performance and is compatible with all SD-compliant devices. The external casing is robust, and it feels durable to hold.
If you are looking for a basic SDHC card to enhance the utility of your smartphone, or point and shoot camera, this is a top choice. It is available in both a 16GB and 32GB variation – there is also a 64GB SDXC version.
6. Lexar Professional 633x SDHC/SDXC UHS-I (Budget Winner)

If you don’t require the 2000x speeds of the first Lexar Professional card we feature, how about this budget version? The Lexar Professional 633x SDHC card is a top choice and our best budget option.
It is a class 10 card that utilizes UHS-I specifications. This means it still has more than adequate transferal speeds of up to 95MB/s.
As a budget SDHC card, this Lexar model offers an excellent combination of reliability, performance, and affordability.
Improve Your Storage Capacity with Quality SDHC Cards
SDHC cards may not have the same maximum storage capacity as SDXC cards, but 32GB is more than adequate for general usage. Moreover, these cards are highly affordable therefore you could comfortably buy two or three as backups.
If you require additional storage, why not purchase one of the above SDHC cards to ensure you can capture and access your digital media with ease?