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
Lexar SL500 USB 3.2 Gen2x2 (20 Gbps)
USB 20 Gbps · External
2TB
$279
at Walmart.
Lowest tracked price
$0.140
/GB
Lexar SL500 USB 3.2 Gen2x2 (20 Gbps)
USB 20 Gbps · External
1TB
$159
at Walmart.
Lowest tracked price
$0.159
/GB
Down 3% vs last cycle
1TB
$209
at Amazon.
Lowest tracked price
$0.209
/GB
2TB
$429
at Walmart.
Lowest tracked price
$0.215
/GB
SAMSUNG T9 USB 3.2 Gen2x2 (20 Gbps)
USB 20 Gbps · External
2TB
$449
at B&H.
Lowest tracked price
$0.225
/GB
SAMSUNG T9 USB 3.2 Gen2x2 (20 Gbps)
USB 20 Gbps · External
4TB
$936
/
$1,081
13% OFF
at B&H.
Lowest tracked price
$0.234
/GB
SAMSUNG T9 USB 3.2 Gen2x2 (20 Gbps)
USB 20 Gbps · External
1TB
$237
/
$287
17% OFF
at Best Buy.
Lowest tracked price
$0.237
/GB
Down 3% vs last cycle
1TB
$239
at B&H.
Lowest tracked price
$0.239
/GB
500GB
$139
/
$185
25% OFF
at Amazon.
Lowest tracked price
$0.278
/GB
Down 13% vs last cycle
9 of 9
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.