Ultra 66/ATA IDE, 100/ATA IDE and 133/ATA IDE.
This is a very high end Cable designed for High Speed Ultra DMA
IDE Hard Drives.
Excellent Cable with Professional Connectors.
Has NO BLOCK-PIN
Has Index Key
Pro-Grade TEFLON Ribbon Cable
What it is:
It's an 80 conductor cable with 40 pin connectors that uses the extra ground wires to dampen the noise bleed
through between lines. This is the only way to overcome the limiting factors due to noise
and crosstalk of the traditional IDE cable.
This cable will also enhance Ultra ATA/33 drives upto 95% faster by reducing noise, thus having the drives running at peak
Who Likes It:
Ultra ATA/66 ATA/100 is endorsed by all leading hard drive manufacturers, including Western Digital, Fujitsu, IBM,
Maxtor, Quantum, Seagate, Toshiba and others. Please check with your hard drive
manufacturer to find out if your hard drive is Ultra ATA/66 or ATA/100.
Ultra ATA/66 ATA/100 is 100 percent backwards
compatible with both Ultra ATA/33 and DMA, and with existing EIDE/IDE hard drives, CD-ROM
drives and host systems.
How does it work?
The way signaling was performed on the ATA bus up through multi-word
DMA Mode 2 (16.6 MB/s) was to send data in synchronous strobe mode but on the positive
transition of the strobe signal only. The breakthrough Ultra ATA/33 extension was key to
using both the positive and negative transitions of the strobe signal, effectively
doubling the available transition frequency without actually increasing the frequency of
the strobe. The result was to double the burst transfer rate. By having the hard drive as
the source of both the strobe and the data during a read, Ultra ATA/33 eliminated both
propagation and data turnaround delays. The elimination of these delays improved the
timing margins. Ultra ATA/66 retains the same strobe frequency but doubles the burst
transfer rate once again.