Pricing
CATALOG
Class average, best price per GB:
SATA
$0.138
→ Holding (+2.9% since last reported)
Gen 4
$0.184
→ Holding (0.0% since last reported)
Gen 5
$0.199
→ Holding (−2.5% since last reported)
Snapshot Nov 2, 2026
Filters
Sorting all capacities by $/GB favors larger drives. Pick a capacity to compare like with like.
Drive
Capacity
Best price
$/GB
vs Class
Trend
8TB
$899
/
$1,999
55% OFF
at SanDisk Direct.
Lowest tracked price
$0.112
/GB
8TB
$1,674
/
$1,849
9% OFF
at Newegg.
Lowest tracked price
$0.209
/GB
13% above the average best Gen 4 price ($0.184/GB)
SanDisk Optimus GX PRO 850X NVMe PCIe Gen4 (64 Gbps)
PCIe Gen4 · M.2 2280
8TB
$1,699
/
$1,999
15% OFF
at Amazon.
Lowest tracked price
$0.212
/GB
15% above the average best Gen 4 price ($0.184/GB)
Down 15% vs last cycle
SanDisk WD_BLACK SN850X NVMe PCIe Gen4 (64 Gbps)
PCIe Gen4 · M.2 2280
8TB
$1,699
/
$1,759
3% OFF
at Best Buy.
Lowest tracked price
$0.212
/GB
15% above the average best Gen 4 price ($0.184/GB)
Down 59% vs last cycle
SanDisk Optimus GX PRO 8100 NVMe PCIe Gen5 (128 Gbps)
PCIe Gen5 · M.2 2280
8TB
$1,999
/
$3,937
49% OFF
at SanDisk Direct.
Lowest tracked price
$0.250
/GB
26% above the average best Gen 5 price ($0.199/GB)
Down 7% vs last cycle
8TB
$2,479
/
$2,769
10% OFF
at Amazon.
Lowest in ~23 days ($2359)
$0.310
/GB
56% above the average best Gen 5 price ($0.199/GB)
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About the Scores
Every drive in our catalog meets a minimum performance bar; drives below it aren't listed. The score answers one question: how much of its interface's potential does this drive actually deliver? It's based on published read and write speeds, whether smaller capacities keep the same write speed, and whether the drive has a DRAM cache, each measured against the best drive on the same interface. Because scores are relative to the interface, a Gen3 drive and a Gen5 drive can both score near 10 even though the Gen5 drive is much faster. To compare like with like, filter by interface class.