During an ongoing event in Las Vegas, focused on the technologies of broadcasting, Western Digital presented the most updated versions of its storage media.
In another article we talked about the differences between micro SD cards on the market. Aside from capacity (if you plan on storing high-resolution multimedia files, such as 4K videos, you might need a large card…), when choose an SD card it is advisable to select media capable of guaranteeing rapid access to the data. Think about the registration of high resolution video or running complex apps on smartphones and tablets.
SD cards are classified using speed classesranging from 2 to 10, and with the terms UHS (Ultra High Speed) ranging from UHS-I to UHS-III. Newer cards may also have V30, V60, and V90 speed ratings, which indicate the minimum speed guaranteed for video recording in 4K and beyond.
Some SD cards are also designed to be more water resistant, impacts and temperature variations compared to others. This is especially important for applications where cards may be exposed to harsh environmental conditions, such as outdoor cameras or drones.
Western Digital announces the arrival of the first 4 Terabyte SD card
The first flash memory format SD da 4 Terabyte that Western Digital adds to its catalog is the new SanDisk Extreme PRO SDUC UHS-I: it will be released during 2025.
The new SD card, in addition to reaching an extraordinary capacity of 4 TB in the compact format that characterizes this type of storage media, also embraces the specific SDUC (Secure Digital Ultra Capacity).
SDXC, widely used as an expansion specification for SD cards, has a maximum capacity of 2TB. Western Digital-SanDisk engineers have therefore adopted the SDUC standard, which allows up to 128 TB.
UHS-I compatible and compliant with class 10 requirements, when operating at maximum performance, the new Western Digital SD allows for data transfer speed of 104 MB/s as maximum value. Support for DDR200/DDR208 modes, which allows data transfer speeds of up to 170 MB/s, may have been shelved, however, due to compatibility issues.
SanDisk SD Express e microSD Express
Western Digital, still under the umbrella of the SanDisk brand, of which it owns, also presented the new 128 and 256 GB SD Express and microSD Express cards.
Compared to Western Digital’s fastest UHS-I SD card at the time of this writing, the new versions are up to 4.4 times faster at data transfer. Fully backwards compatible, these are perfect solutions for data-intensive workflows and high-performance cameras.
SanDisk SD Express and SanDisk microSD Express can move data at a rate of 880 MB/s reading and up to 650 MB/s writing, positioning themselves – in terms of performance – among SSDs SATA they SSD NVMe Gen 3.
Finally, the well-known manufacturer of data storage solutions has also unveiled the new 2 TB SDXC and microSDXC UHS-I cards. The large capacity gives you way to store more high-resolution images and record more video 4K UHD on a single card.