Differences What are the advantages of each

Front view of SanDisk Ultra II

Reasons to consider the
SanDisk Ultra II

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Significantly higher capacity 960 GB vs 480 GB 2x higher capacity
Much more capacity per dollar 3.84 GB/$ vs 1.52 GB/$ More than 2.5x more capacity per dollar
Front view of SanDisk Extreme II

Reasons to consider the
SanDisk Extreme II

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Higher MTBF 2,000,000 hours vs 1,750,000 hours Around 15% higher MTBF

Specifications Full list of technical specs

storage

Ultra II  vs
Extreme II 
Capacity 960 GB 480 GB
Interface SATA III SATA III
Interface speed 6 Gbit/s 6 Gbit/s
Controller Marvell 88SS9187 Marvell 88SS9187
Memory type MLC SLC

form factor

Ultra II  vs
Extreme II 
Form factor 2.5" 2.5"
Thickness 7 mm 7 mm

manufacturer performance

MTBF 1,750,000 hours 2,000,000 hours

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