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
SanDisk WD_BLACK SN7100 NVMe PCIe Gen4 (64 Gbps)
PCIe Gen4 · M.2 2280
4TB
$589
/
$609
3% OFF
at Best Buy.
Lowest tracked price
$0.147
/GB
20% below the average best Gen 4 price ($0.184/GB)
Kingston NV3 2x80 NVMe PCIe Gen4 (64 Gbps)
PCIe Gen4 · M.2 2280
4TB
$712
at Best Buy.
Lowest in ~9 days ($560)
$0.178
/GB
3% below the average best Gen 4 price ($0.184/GB)
Up 27% vs last cycle
SAMSUNG 990 EVO PLUS NVMe PCIe Gen4 (64 Gbps)
PCIe Gen4 · M.2 2280
4TB
$739
/
$1,049
30% OFF
at Best Buy.
Lowest tracked price
$0.185
/GB
In line with the average best Gen 4 price ($0.184/GB)
Down 37% vs last cycle
4TB
$749
at Best Buy.
Lowest tracked price
$0.187
/GB
In line with the average best Gen 4 price ($0.184/GB)
SanDisk Optimus GX 7100 NVMe PCIe Gen4 (64 Gbps)
PCIe Gen4 · M.2 2280
4TB
$749
/
$954
21% OFF
at Best Buy.
Lowest tracked price
$0.187
/GB
In line with the average best Gen 4 price ($0.184/GB)
Down 4% vs last cycle
SanDisk WD_BLACK SN850X NVMe PCIe Gen4 (64 Gbps)
PCIe Gen4 · M.2 2280
4TB
$789
/
$799
1% OFF
at Best Buy.
Lowest tracked price
$0.197
/GB
7% above the average best Gen 4 price ($0.184/GB)
SAMSUNG 990 PRO NVMe PCIe Gen4 (64 Gbps)
PCIe Gen4 · M.2 2280
4TB
$799
at Best Buy.
Lowest tracked price
$0.200
/GB
9% above the average best Gen 4 price ($0.184/GB)
Down 19% vs last cycle
SanDisk Optimus GX PRO 850X NVMe PCIe Gen4 (64 Gbps)
PCIe Gen4 · M.2 2280
4TB
$849
/
$1,166
27% OFF
at Best Buy.
Lowest tracked price
$0.212
/GB
15% above the average best Gen 4 price ($0.184/GB)
Down 15% vs last cycle
8 of 8
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.