SD Express uses the PCIe 4.0 specification and the latest NVMe specification (up to 1.4). The SD 8.0 specification provides to transfer speed options for SD Express memory cards through support for either PCIe 3.0 x2 or PCIe 4.0 x1 with up to 2GB/s and with PCIe 4.0 x2 technology with up to 4GB/s. SD Express cards based on PCIe 4.0 x1 architecture use the same form factor as SD 7.0 cards, with a second row of pins, while cards supporting dual PCIe lanes (PCIe 3.0 x2 or PCIe 4.0 x2) have three rows of pins.
]]>Available in capacities including 250GB, 500GB, 1TB and 2TB, the P5 offers sequential read speeds reaching 3400MB/s. Sequential write speeds reach 3000MB/s with exception of the 250GB model. Instead, the lowest-capacity option provides sequential write speeds clocking at 1400MB/s. Random read IOPS are 210000 for the 250 and 500GB SSDs, while the 1TB offers 390000 and the 2TB drives at 430000. On the other hand, random write IOPS are 355000 for the 250GB model and 500000 for all the others. Micron adds all the drives include a set of encryption standards, allowing for some security.
]]>The cooling module is just 1mm thick, and Team Group says the cooling effect can be observed after three hours of continuous read/write ops. That said, one has to keep in mind the SSDs were compared with drives lacking any cooling, as opposed to an SSD with a conventional metal heatsink. However it does make for drives with an attractive black and gold design aimed primarily at gamer customers.
]]>The cards carry both A1 and V3 badges, meaning they can be used to install Google Android applications with a minimum write speed of up to 30MB/s, or good enough for 4K video shooting. First introduced back in 2017, so far pseudo-SLC caching has not been used in other memory cards. The USD230I range uses 3D TLC NAND memory, necessitating the need for pSLC caching to boost writing performance.
]]>The DiskStation DS220j is based on a Realtek RTD1296, a 64-bit, 4-core 1.4GHz CPU, together with 512MB of DDR4 RAM. It has two 3.5-inch bays able to house both 3.5- and 2.5-inch devices, as well as x1 GBe and x2 USB-A ports. It operates the drives in Synology Hybrid RAID (SHR), Basic, JBOD, RAID 0 or RAID 1 modes, and while it uses the ext4 file systems it also supports ext4, ext3, FAT, NTFS, HFS+, and exFAT. Synology claims performance reaches over 112MB/s, at least in terms of sequential read/write.
]]>According to the company, the SSDs were tested to survive six face drop tests, eight corner drop tests and 12 edge drop tests, all from a height of around 1.2m. Passing the test means the drives remain in working condition and suffer no physical or internal damage. Buffalo also promises data secure, with SecureLock Mobile2 technology encoding data using an AES-256 key and a SMART function to predict storage component failure.
]]>Available in 256GB, 512GB and 1TB capacities, the SE760 carries 3D NAND flash and is rated to perform at sequential read/write speeds of up to 1Gbps. The brushed metal enclosure comes in black or gray, measures 122.2 x 44 x 14mm and weighs 95g. While the drive features a USB-C interface, Adata includes both USB-C to USB-C and USB-C to USB-A cables in order to ensure compatibility with any PC.
]]>As the name suggests, HAMR is a recording method involving the heating of a magnetic film in order to record data. To do so, the SDK technology uses small grains of magnetic crystals with thermal stability and information writability. Also involved are aluminium platters and a thin films of Fe-Pt alloy, a magnetic material both powerful and with high corrosion resistance.
]]>Key updates to the standard include Write Booster (a SLC non-volatile cache to amplify write speeds), DeepSleep (a low-power state for lower-cost systems) and Performance Throttling Notification (allows the UFS device to notify the host when high temperatures throttle storage performance). A JESD220-3 Host Performance Booster (HPB) extension provides an option to cache the UFS device logical-to-physical address map to system DRAM, providing larger and faster caching and thus improving the read performance of the device.
]]>The unit holds five 3.5/2.5-inch HDDs or SSDs, and supports a total of 80TB of storage. As a modern NAS, it handles various RAID modes, including RAID 1, RAID 5, RAID 6 and RAID 10. Performance tops out at 670MB/s read and 650MB/s write with all drives running in RAID 5 mode. Meanwhile the TOS 4.1 OS supports SSD caching to accelerate I/O performance as well as multiple security layers, including clustered Btrfs file system, snapshots, AES hardware folder encryption, network transport encryption and scheduled backups (including cloud backups).
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