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
SAMSUNG T5 EVO USB 3.2 Gen1 (5 Gbps)
USB 5 Gbps · External
4TB
$579
at Amazon.
Lowest in ~2 months ($529)
$0.145
/GB
SABRENT Rocket XTRM 5 Thunderbolt 5 (80 Gbps)
Thunderbolt / USB4 · External
4TB
$649
at Walmart.
Lowest tracked price
$0.162
/GB
4TB
$721
at Amazon.
Lowest in ~1 month ($689)
$0.180
/GB
Up 4% vs last cycle
4TB
$789
at Amazon.
Lowest in ~3+ months ($329)
$0.197
/GB
Down 1% vs last cycle
4TB
$799
at Amazon.
Lowest tracked price
$0.200
/GB
4TB
$833
at Amazon.
Lowest in ~23 days ($826)
$0.208
/GB
Lexar ARMOR 700 USB 3.2 Gen2x2 (20 Gbps)
USB 20 Gbps · External
4TB
$834
at Walmart.
Lowest tracked price
$0.209
/GB
Lexar SL500 USB 3.2 Gen2x2 (20 Gbps)
USB 20 Gbps · External
4TB
$899
at Best Buy.
Lowest tracked price
$0.225
/GB
4TB
$899
at Newegg.
Low was $798
$0.225
/GB
Up 13% vs last cycle
4TB
$899
at Newegg.
Lowest tracked price
$0.225
/GB
4TB
$923
at Amazon.
Lowest in ~15 days ($899)
$0.231
/GB
SAMSUNG T9 USB 3.2 Gen2x2 (20 Gbps)
USB 20 Gbps · External
4TB
$931
/
$1,144
19% OFF
at Amazon.
Lowest in ~14 days ($929)
$0.233
/GB
4TB
$1,099
at Amazon.
Lowest in ~3+ months ($449)
$0.275
/GB
4TB
$1,261
at Amazon.
Lowest in ~1 month ($1179)
$0.315
/GB
Down 7% vs last cycle
4TB
$1,379
at Amazon.
Lowest tracked price
$0.345
/GB
4TB
$1,479
at B&H.
Lowest in ~5 days ($1169)
$0.370
/GB
Up 27% vs last cycle
4TB
$1,500
at Amazon.
Lowest tracked price
$0.375
/GB
Corsair EX400U USB 4 V1 (40 Gbps)
Thunderbolt / USB4 · External
4TB
$1,554
at Corsair Direct.
Lowest in ~28 days ($1544)
$0.389
/GB
18 of 18
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.