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The SanDisk Ultra Plus 256GB SSD ships in a small package detailing the capacities, key selling points along with an image of the product.
Inside the package is user manual and rubber mount. The Sandisk Ultra Plus ships inside an anti static bag which is sealed.
We immediately noticed how light the drive was compared to a normal Solid State Drive.
Now we know why. The PCB takes up around 40% of the total chassis space, screwed into one side with a thermal pad on the other side.
The company sent us the largest 256GB model, with 128GB and 64GB models also available. The 256GB version ships with four 19nm SanDisk NAND modules, sized at 64GB each, two of which are on either side of the PCB. We can see the Marvell SS889175 controller and 128MB of Samsung DDR2 DRAM which operates as the cache.
The drive features nCache, meaning that a small portion of the 19nm NAND is configured as a SLC cache. The Marvell processor can aggregate small random writes then via the cache, flushing them out. This should help long term life of the drive, and MTBF is rated at 2,000,000 hours which would verify this.
Sandisk rate this drive at a maximum of 530MB/s sequential read and 445 MB/s sequential write. The 128GB version of this drive has a reduced write speed of up to 290 MB/s and the 64GB drops even further, up to 155MB/s.
