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SanDisk 4TB Extreme PRO Portable SSD, USB-C USB 3.2 Gen 2x2, External NVMe Solid State Drive, up to 2000 MB/s, IP65 rated for dust and water resistance

£154.575£309.15Clearance
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USB-C Connectivity: The PRO-G40 plays nice with both Thunderbolt 3 and USB Type-C ports. So you can experience great performance whether connecting to your MacBook Pro or an iPad Pro. s and 2500MB/s Read/Write Speeds: The PRO-G40 hits remarkable speeds up 3000MB/s read and 2500MB/s write over its Thunderbolt 3 interface. This bandwidth rips through transfers of 8K footage, giant photo libraries, or any media files you need to store or move.

When connected to a PC using USB 3.2 Gen 2 ports, our speeds topped out at around 1,050MB/s reads with 1,000 MB/s writes on CrystalDiskMark 8.0.4, irrespective of USB-A or USB-C. Get fast NVMe™ solid state performance featuring 1050MB/s 2 read and 1000MB/s 2 write speeds in a portable, high-capacity drive that’s perfect for creating amazing content or capturing incredible footage. While it will work with USB 2.0 and USB 3.0 (aka USB 3.1), to get the best transfer speeds from it requires a port with USB 3.2 Gen 2 10Gbit/s. Where this drive is better than the more expensive PRO-G40 is that it at least comes with both the USB cables most customers will need, and they are also a decent length.The table below presents a comparative view of the specifications of the two portable SSDs covered in this review. Comparative Portable SSDs Configuration

Since this drive is only USB Gen 3.2 Gen 2 capable, there are many brands and products that offer the same capacities and performance levels for significantly less. But the same as that counterpart, SanDisk doesn’t provide a pouch or case to carry the drive and its cables, a niche that some third party will undoubtedly fill. That SanDisk doesn’t include any cross-system boot sector with a utility to configure the drive for any OS is disappointing, and they also provide no software for this drive or others in the same range. As a USB drive, these numbers are solid and equivalent to those that we’ve seen from the Crucial X8 and its like. There are faster USB drives that use the USB 3.2 Gen 2x2 standard, such as the PNY EliteX-PRO and Kingston XS2000. For those curious, Thunderbolt-connected SSDs can be three times these speeds, something to consider for those that have that port and can afford those drives.That you can buy two Crucial X8 for the price of a single SanDisk Professional SSD that isn’t any faster suggests that either Crucial is underselling its line or SanDisk has entirely lost the pricing plot. One curiosity is that the drive can supposedly handle being dropped 3 metres, but in the fine print, that’s onto concrete covered in carpet. The carpet requirement seems to be something of an odd detail, as the world wasn’t fully carpeted when we looked last. Admin said:WD says that it is readying a firmware fix for a frightening SanDisk Extreme Portable SSD sudden failure issue, but it only mentions ups for 4TB users. IP68 Rating: An IP68 rating gives this SSD resistance to dust and lets it withstand submersion in 1.5 meters of water for 30 minutes. It has an incredible 4000lb crush resistance and 3m drop resistance. Overall, this is a very nicely engineered and constructed external drive that looks able to cope with abuse that might be expected to kill those external SSDs that are made mostly of plastic.

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