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SK hynix Gold S31
SK hynix

SK hynix Gold S31 Spec and Price in the United States

SATA1TB2.5-inch560 MB/s read

Released August 15, 2019 · $123.99 MSRP

The Gold S31 is the only drive in this set built around a 1TB capacity point rather than 2TB, and its 600TB TBW endurance rating is exactly half the 1,200TB figure SK hynix rates on the Gold P31 and Platinum P41. It's a SATA drive with sequential speeds around 560/525 MB/s and a DRAM cache from the Quartz controller, priced at $123.99 — the lowest MSRP in this comparison. That combination points squarely at budget upgrades: replacing a spinning hard drive or an aging SATA SSD without needing NVMe.

Tied 87th of 106 models in the SSD catalog on Sequential read — 8 models share this figure. 93rd of 106 models in the SSD catalog on Sequential write.

Current best price
From $99.99Price too old to confirm

Prices exclude sales tax.

The last tracked price for the 500GB SK hynix Gold S31 in the United States was $99.99 at Amazon.com, captured 2026-08-27. Across one tracked merchant and 21 days of recorded prices, the 90-day median for the 500GB SK hynix Gold S31 is $99.99 and the lowest recorded price is $73.00. This site began capturing prices on July 30, 2026; for Amazon listings, prices dated earlier come from Keepa's price history.

Captured periodically and may have changed.

Price history

  • 500GB
  • 1TB
May 12, 202645 data pointstoday · $163.00

Each point is one day's recorded price, not a list price. Points dated before July 30, 2026, when this site began capturing prices, come from Keepa's Amazon price history. How we track prices

Specifications

Capacity
1TB
Interface
SATA
Sequential read
560 MB/s
Sequential write
525 MB/s
Random read
95000 IOPS
Random write
87000 IOPS
Form factor
2.5-inch
NAND type
TLC
DRAM cache
Controller
SK hynix Quartz controller
Endurance (TBW)
600 TB
Warranty
5 years

Capacities

ConfigurationPart numberEndurance (TBW)Sequential writeSequential readCurrent best pricePrice per TB
250GBSHGS31-250GS-2200 TB500 MB/s560 MB/s——
500GBSHGS31-500GS-2300 TB525 MB/s560 MB/s

$99.99

Price too old to confirm

—
1TBSHGS31-1000GS-2600 TB525 MB/s560 MB/s

$163.00

Price too old to confirm

—

What owners and reviewers say

Summarised from 1 source(s), reviewed September 13, 2026. A source is counted only where it names this model exactly. How we track prices

Commonly praised

  • Review coverage places its sequential performance in the same tier as the best-known SATA drives of its generation, rather than clearly behind them.
  • Reviewers single out its price against those same drives as its main reason to choose it.
  • It ships with a free cloning and data-migration utility, which reviewers note as a practical inclusion for an upgrade.
  • The five-year warranty is highlighted as matching the established SATA competition.

Commonly criticised

  • Its SLC write cache is small, so sustained writes fall back to slower speeds sooner than reviewers would like.
  • The line tops out at 1TB, which reviewers flag as a narrower range than competing SATA families offer.

Sources behind this summary

Guides for this category

Sources

Every spec above was pulled from one of these — a field a source didn't state was left off rather than estimated.