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PC & Tech Authority - - GROUP TEST -

anDisk was one of two man­u­fac­tur­ers who sup­plied capacious 1TB drives this month, the other be­ing Western Dig­i­tal. Nom­i­nally, the two drives are tar­geted at quite di”er­ent mar­kets. The WD Blue is a main­stream solid-state drive, with a price to match. The SanDisk Ex­treme Pro, on the other hand, is very much po­si­tioned as a pre­mium drive – some­thing that’s cer­tainly re­flected in the much steeper price.

As we’ve seen re­peat­edly dur­ing this month’s Labs, how­ever, the SATA in­ter­face is a great lev­eller. These days, even a fairly cheap SSD can eas­ily sat­u­rate the con­nec­tion. You can in­vest in high-end flash me­mory and fancy cus­tom con­trollers all you like, but trans­fer speeds won’t get any higher. And so, the Ex­treme Pro yields per­for­mance that’s all but iden­ti­cal to the Western Dig­i­tal.

De­spite the “Pro” brand­ing, the SanDisk also lacks hard­ware en­cryp­tion, and write en­durance is rel­a­tively poor – the drive’s rated for a measly 80TBW. That may have been par for the course when the Ex­treme Pro was in­tro­duced back in 2014, but it doesn’t re­ally cut the mus­tard to­day: the WD Blue in the same ca­pac­ity prom­ises a whop­ping 400TBW. In­deed, the Ex­treme Pro’s only real ad­van­tage over the WD Blue is its tenyear war­ranty. That’s not an un­wel­come bonus, but it’s nowhere near enough to re­deem this SSD.

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