PDA

View Full Version : SanDisk Compact Flash Readers


Casey
03-04-2009, 11:55 AM
is a SanDisk ExtremeŽ FireWire Reader (http://www.sandisk.com/Products/Item(2015)-SDDRX4-CF-901-SanDisk_Extreme_FireWire_Reader.aspx)really that much better then a SanDisk ExtremeŽ 2.0 USB Reader (http://www.sandisk.com/Products/Item(2012)-SDDRX3-CF-A31-SanDisk_Extreme_20_USB_Readers.aspx) or are there better options? i'm using SanDisk Extreme III CompactFlash cards

i've had good luck in the past with Sandisk SD readers.
Shaun K
03-17-2009, 09:40 PM
is a SanDisk ExtremeŽ FireWire Reader (http://www.sandisk.com/Products/Item(2015)-SDDRX4-CF-901-SanDisk_Extreme_FireWire_Reader.aspx)really that much better then a SanDisk ExtremeŽ 2.0 USB Reader (http://www.sandisk.com/Products/Item(2012)-SDDRX3-CF-A31-SanDisk_Extreme_20_USB_Readers.aspx) or are there better options? i'm using SanDisk Extreme III CompactFlash cards

i've had good luck in the past with Sandisk SD readers.

No, extreme III CF's will not empty any faster on the Firewire reader. That reader was made to run the extreme IV CF's at full speed although backwards compatable with older/slower cards
hsbob
03-20-2009, 10:37 AM
firewire is equial to usb 2.o in speed.
Casey
03-20-2009, 01:39 PM
i went with the SanDisk Extreme usb and i'm very happy with it!
Shaun K
03-22-2009, 08:25 AM
firewire is equial to usb 2.o in speed.

throughput rating numbers are meaningless, Its not even close really. Thats why sandisk make firewire readers for their fastest cards

=================

Architecture - FireWire vs. USB 2.0

FireWire, built from the ground up for speed, uses a "Peer-to-Peer" architecture in which the peripherals are intelligent and can negotiate bus conflicts to determine which device can best control a data transfer

USB 2.0 uses a "Master-Slave" architecture in which the computer handles all arbitration functions and dictates data flow to, from and between the attached peripherals (adding additional system overhead and resulting in slower, less-efficient data flow control)

Performance Comparison - FireWire vs. USB 2.0
Read and write tests to the same IDE hard drive connected using FireWire and then USB 2.0 show:

Read Test:
5000 files (300 MB total) FireWire was 33% faster than USB 2.0
160 files (650MB total) FireWire was 70% faster than USB 2.0

Write Test:
5000 files (300 MB total) FireWire was 16% faster than USB 2.0
160 files (650MB total) FireWire was 48% faster than USB 2.0
Shaun K
03-22-2009, 08:26 AM
i went with the SanDisk Extreme usb and i'm very happy with it!

good choice