PNY CS900 500GB vs SanDisk SSD Plus 500GB

PNYCS900 500GB500 GB · 550 MB/s · 500 MB/s · tlcLeads on Sequential read
SanDiskSSD Plus 500GB500 GB · 545 MB/s · 505 MB/sLeads on Sequential write
In short

The site holds no current price for at least one of these, so what follows compares specifications alone.

SpecificationPNYCS900 500GBSanDiskSSD Plus 500GB
Capacity (GB)500500
Sequential read (MB/s)550better545
Sequential write (MB/s)500505better
Current best price$89.99at Amazon.com · captured 2026-09-13
Price per TB$179.98
NAND typetlc

How these two compare

Sequential throughput

PNY CS900 500GB is rated 550 MB/s read and 500 MB/s write; SanDisk SSD Plus 500GB, 545 MB/s read and 505 MB/s write. The SATA link tops out around 550 MB/s each way, and both work against that ceiling; the more telling differences between SATA drives are how each holds up under sustained load, whether it carries a DRAM cache, and how much writing it is rated to take.

NAND and warranty

NAND: PNY CS900 500GB uses TLC and SanDisk SSD Plus 500GB's NAND is not stated. The tier is bits per cell — SLC, MLC, TLC and QLC from one to four — trading density against endurance and sustained-write speed: QLC is cheapest per gigabyte, TLC the mainstream balance, and the denser the cell the sooner sustained writes taper. On the cover: PNY CS900 500GB carries a 3-year warranty, SanDisk SSD Plus 500GB does not state one. The length is the maker's own vote of confidence, and on an SSD it tends to track the endurance rating — a longer warranty usually meaning more rated writes.

Which to buy

With a price missing for at least one side, there is no cost verdict to give. What separates two otherwise-similar drives is up in the sections above — sustained and random behaviour, whether there is a DRAM cache, the flash tier and the warranty — so weigh those against what your build needs.

Common questions about this pair

Which is faster, PNY CS900 500GB or SanDisk SSD Plus 500GB?
PNY CS900 500GB is rated 550 MB/s read and 500 MB/s write; SanDisk SSD Plus 500GB, 545 MB/s read and 505 MB/s write. The SATA link tops out around 550 MB/s each way, and both work against that ceiling; the more telling differences between SATA drives are how each holds up under sustained load, whether it carries a DRAM cache, and how much writing it is rated to take.
Should you buy PNY CS900 500GB or SanDisk SSD Plus 500GB?
With a price missing for at least one side, there is no cost verdict to give. What separates two otherwise-similar drives is up in the sections above — sustained and random behaviour, whether there is a DRAM cache, the flash tier and the warranty — so weigh those against what your build needs.
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