[kason]

Want to buy a 512M Compact Flash
But I found out there is so many type
All the people say San Disk Compact Flash Ultra II is the fastest.
But I can't found it, All sold out.
Only have 256M
I want to know the difference of the speed
1. Normal Compact Flash
2. ULTRA Compact Flash
3. ULTRA II Compact Flash
4. Extreme Compact Flash

[ladios_sopp]

SanDisk CF card speed in ascending order :

Normal < ULTRA < ULTRA II = Extreme

practical throughput of my Ultra 2 512MB is around 6MB/sec on D70, 10MB or more on PC, cos I need around 5 mins to transfer full CF card data to PC

[tleung11]

Ultra 有無用過?
佢係幾多 x 架?
如果同 ultra II 差唔遠就唔使等啦...
Extreme 速度一樣? 咁有乜唔同呀?

[老叟]

ultra-II 速度同extreme無分別,extreme 可以响惡劣環境正常運作,貴D!!