SanDisk
Prices
SanDisk Optimus GX PRO 850P
10 offers at 4 retailers · from $309 (1TB at Best Buy)
Score 9.7 · Exceptional for PCIe Gen4-class
7,300 read · 6,600 write MB/s
M.2 2280
NVMe PCIe Gen4 (64 Gbps)
DRAM cache
5-year warranty
Heatsink
Gen 4 average best price $0.184/GB
→ Holding (0.0% since last reported)
Snapshot Nov 2, 2026
1TB
600 TBW · Single-sided
Best:
$309 at Amazon and Best Buy
· $0.309/GB
68% above the average best Gen 4 price ($0.184/GB)
Retailer
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Current $
Newegg
Out of Stock
Oct 28, 2026
2TB
1,200 TBW · Single-sided
Best:
$569 at Amazon and Best Buy
· $0.285/GB
55% above the average best Gen 4 price ($0.184/GB)
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Current $
4TB
2,400 TBW · Double-sided
Best:
$1,059 at Amazon and SanDisk Direct
· $0.265/GB
44% above the average best Gen 4 price ($0.184/GB)
Retailer
Price
$/GB
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Current $
8TB
4,800 TBW · Double-sided
Best:
$1,919 at SanDisk Direct
· $0.240/GB
30% above the average best Gen 4 price ($0.184/GB)
Retailer
Price
$/GB
Stock
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Current $
Best Buy
Out of Stock
Nov 2, 2026
- Sold on the retailer's site by a third-party seller.