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Monday, February 26, 2018
MWC: Western Digital Releases 400GB SanDisk Extreme microSDXHS, Demos PCIe-enabled SD card and New NVMe SSDs


At Mobile World Congress, Western Digital is releasing the ulra-fast UHS-I flash memory card, the 400GB SanDisk Extreme UHS-I microSDXC card, demonstrates Peripheral Component Interconnect Express (PCIe)-enabled cards, and two new NVMe SSDs - Western Digital PC SN720 and Western Digital PC SN520.

The company's new 400GB SanDisk Extreme UHS-I microSD card supports 160MB/s - more than 50 percent faster than current SanDisk Extreme UHS-I microSD cards. The card is able to reach this speed by leveraging Western Digital proprietary technology. The card will also feature the A2 specification to help launch and load apps fast.

Western Digital is also showcasing a new platform to enable the future of flash memory cards with a demonstration of its PCIe-enabled SD card. In anticipation of the next generation of high-performance mobile computing requirements, implementing PCIe technology will deliver the ability to read data files faster than today's platform. Through Western Digital's portfolio, this technology can now be demonstrated to boost the performance of SD cards. These speeds are essential for high-resolution content applications such as super-slow-motion video, RAW continuous burst mode and 8K video capture and playback. PCIe has traditionally been reserved for use in high-performance data center systems, where the single-lane PCIe Gen 3.0 standard specifications denote capabilities of achieving speeds of up to 985MB/s.

At Mobile World Congress, Western Digital is also demonstrating its new Western Digital PC SN720 and PC SN520 SSDs, powered by a new NVMe storage architecture.

They are using a new NVMe SSD firmware and controller architecture, purpose-built to maximize the performance and scalability benefits of Western Digital 3D NAND.

The Western Digital PC SN720, currently sampling, will be available in 256GB, 512GB, 1TB and 2TB capacities on a single-sided M.2 2280 form factor. It delivers sequential read/write speeds of up to 3,400MB/s and 2,800MB/s and is supported with a 5-year limited warranty.

Capacity 1TB 512GB 256GB  
Sequential Read/Write 3,400/2,800MB/s 3,400/2,500MB/s 3,000/1,600MB/s  
Random Read/Write Up to 500/400K IOPS Up to 440/330K IOPS Up to 225/185K IOPS  
Form Factor M.2 2280 M.2 2280 M.2 2280  
Interface NVMe Gen3 X4 NVMe Gen3 X4 NVMe Gen3 X4  
Endurance 400 TBW 300 TBW 200 TBW

Western Digital PC SN520 is also currently sampling. It will be available in 128GB, 256GB and 512GB capacities. For design flexibility and one of the lowest power draws in the industry, the Western Digital PC SN520 will be available as single-sided M.2 2280, M.2 2242, or M.2 2230 form factors.

Capacity 512GB 256GB 128GB
Sequential Read/Write Up to 1,700/1,400MB/s Up to 1,700/1,300MB/s Up to 1,500/800MB/s
Random Read/Write Up to 270/280K IOPS Up to 220/175K IOPS Up to 95/90K IOPS
Form Factor M.2 2280, 2242, 2230 M.2 2280, 2242, 2230 M.2 2280, 2242, 2230
Interface NVMe Gen3 X2 NVMe Gen3 X2 NVMe Gen3 X2
Endurance 300 TBW 200 TBW 100 TBW


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