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
Active Filters:
Retailer: SanDisk Direct
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
2TB
$259
at SanDisk Direct.
Lowest tracked price
$0.130
/GB
Down 19% vs last cycle
SanDisk Optimus 5100 NVMe PCIe Gen4 (64 Gbps)
PCIe Gen4 · M.2 2280
4TB
$599
at SanDisk Direct.
Lowest tracked price
$0.150
/GB
19% below the average best Gen 4 price ($0.184/GB)
2TB
$319
at SanDisk Direct.
Lowest tracked price
$0.160
/GB
SanDisk Optimus 5100 NVMe PCIe Gen4 (64 Gbps)
PCIe Gen4 · M.2 2280
2TB
$349
at SanDisk Direct.
Lowest tracked price
$0.175
/GB
5% below the average best Gen 4 price ($0.184/GB)
SanDisk 520 SATA III (6 Gbps)
SATA · 2.5-inch
1TB
$179
at SanDisk Direct.
Lowest tracked price
$0.179
/GB
29% above the average best SATA price ($0.138/GB)
Down 10% vs last cycle
SanDisk 520 SATA III (6 Gbps)
SATA · 2.5-inch
2TB
$359
at SanDisk Direct.
Lowest tracked price
$0.180
/GB
30% above the average best SATA price ($0.138/GB)
SanDisk 520 SATA III (6 Gbps)
SATA · 2.5-inch
4TB
$719
at SanDisk Direct.
Lowest tracked price
$0.180
/GB
30% above the average best SATA price ($0.138/GB)
SanDisk Optimus GX 7100 NVMe PCIe Gen4 (64 Gbps)
PCIe Gen4 · M.2 2280
2TB
$369
/
$762
52% OFF
at SanDisk Direct.
Lowest tracked price
$0.185
/GB
In line with the average best Gen 4 price ($0.184/GB)
Down 18% vs last cycle
1TB
$187
at SanDisk Direct.
Lowest tracked price
$0.187
/GB
SanDisk Optimus 5100 NVMe PCIe Gen4 (64 Gbps)
PCIe Gen4 · M.2 2280
1TB
$199
at SanDisk Direct.
Lowest tracked price
$0.199
/GB
8% above the average best Gen 4 price ($0.184/GB)
1TB
$199
/
$249
20% OFF
at SanDisk Direct.
Lowest tracked price
$0.199
/GB
SanDisk Optimus GX 7100M NVMe PCIe Gen4 (64 Gbps)
PCIe Gen4 · M.2 2230
2TB
$399
/
$762
48% OFF
at SanDisk Direct.
Lowest tracked price
$0.200
/GB
9% above the average best Gen 4 price ($0.184/GB)
Down 11% vs last cycle
4TB
$799
/
$999
20% OFF
at SanDisk Direct.
Lowest tracked price
$0.200
/GB
SanDisk Optimus GX 7100 NVMe PCIe Gen4 (64 Gbps)
PCIe Gen4 · M.2 2280
4TB
$799
/
$1,501
47% OFF
at SanDisk Direct.
Lowest tracked price
$0.200
/GB
9% above the average best Gen 4 price ($0.184/GB)
Down 8% vs last cycle
2TB
$409
at SanDisk Direct.
Lowest tracked price
$0.205
/GB
SanDisk Optimus GX PRO 850X NVMe PCIe Gen4 (64 Gbps)
PCIe Gen4 · M.2 2280
2TB
$419
/
$999
58% OFF
at SanDisk Direct.
Lowest tracked price
$0.210
/GB
14% above the average best Gen 4 price ($0.184/GB)
Down 21% vs last cycle
SanDisk Optimus GX PRO 850X NVMe PCIe Gen4 (64 Gbps)
PCIe Gen4 · M.2 2280
4TB
$849
/
$1,874
55% OFF
at SanDisk Direct.
Lowest tracked price
$0.212
/GB
15% above the average best Gen 4 price ($0.184/GB)
Down 15% vs last cycle
SanDisk Optimus GX PRO 850X NVMe PCIe Gen4 (64 Gbps)
PCIe Gen4 · M.2 2280
8TB
$1,699
/
$3,749
55% OFF
at SanDisk Direct.
Lowest tracked price
$0.212
/GB
15% above the average best Gen 4 price ($0.184/GB)
Down 15% vs last cycle
SanDisk 520 SATA III (6 Gbps)
SATA · 2.5-inch
500GB
$109
at SanDisk Direct.
Lowest tracked price
$0.218
/GB
58% above the average best SATA price ($0.138/GB)
SanDisk Optimus GX 7100X NVMe PCIe Gen4 (64 Gbps)
PCIe Gen4 · M.2 2280
4TB
$899
at SanDisk Direct.
Lowest tracked price
$0.225
/GB
22% above the average best Gen 4 price ($0.184/GB)
Down 6% vs last cycle
1TB
$229
at SanDisk Direct.
Lowest tracked price
$0.229
/GB
SanDisk Optimus GX 7100 NVMe PCIe Gen4 (64 Gbps)
PCIe Gen4 · M.2 2280
1TB
$229
/
$387
41% OFF
at SanDisk Direct.
Lowest tracked price
$0.229
/GB
24% above the average best Gen 4 price ($0.184/GB)
SanDisk Optimus GX 7100M NVMe PCIe Gen4 (64 Gbps)
PCIe Gen4 · M.2 2230
1TB
$229
/
$387
41% OFF
at SanDisk Direct.
Lowest tracked price
$0.229
/GB
24% above the average best Gen 4 price ($0.184/GB)
512GB
$119
at SanDisk Direct.
Lowest tracked price
$0.232
/GB
SanDisk Optimus GX PRO 8100 NVMe PCIe Gen5 (128 Gbps)
PCIe Gen5 · M.2 2280
4TB
$949
/
$1,974
52% OFF
at SanDisk Direct.
Lowest in ~20 days ($939)
$0.237
/GB
19% above the average best Gen 5 price ($0.199/GB)
Down 12% vs last cycle
500GB
$119
at SanDisk Direct.
Lowest tracked price
$0.238
/GB
8TB
$1,919
at SanDisk Direct.
Lowest tracked price
$0.240
/GB
30% above the average best Gen 4 price ($0.184/GB)
Down 15% vs last cycle
1TB
$249
at SanDisk Direct.
Lowest tracked price
$0.249
/GB
SanDisk Optimus GX PRO 850X NVMe PCIe Gen4 (64 Gbps)
PCIe Gen4 · M.2 2280
1TB
$249
at SanDisk Direct.
Lowest in ~20 days ($239)
$0.249
/GB
35% above the average best Gen 4 price ($0.184/GB)
Down 7% vs last cycle
2TB
$499
at SanDisk Direct.
Lowest tracked price
$0.250
/GB
26% above the average best Gen 5 price ($0.199/GB)
Down 15% 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
2TB
$519
/
$824
37% OFF
at SanDisk Direct.
Lowest tracked price
$0.260
/GB
4TB
$1,059
at SanDisk Direct.
Lowest tracked price
$0.265
/GB
44% above the average best Gen 4 price ($0.184/GB)
Down 7% vs last cycle
1TB
$279
at SanDisk Direct.
Lowest tracked price
$0.279
/GB
40% above the average best Gen 5 price ($0.199/GB)
Down 13% vs last cycle
2TB
$569
at SanDisk Direct.
Lowest tracked price
$0.285
/GB
55% above the average best Gen 4 price ($0.184/GB)
Down 7% vs last cycle
1TB
$309
at SanDisk Direct.
Lowest in ~20 days ($299)
$0.309
/GB
68% above the average best Gen 4 price ($0.184/GB)
500GB
$159
at SanDisk Direct.
Lowest tracked price
$0.318
/GB
1TB
$389
/
$574
32% OFF
at SanDisk Direct.
Lowest tracked price
$0.389
/GB
39 of 39
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.