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Seagate Barracuda 7200.7 160GB (SATA)
By CPU-zilla
Category : Storage
Published by Jimmy Tang on Thursday, 31st July, 2003
Rating : 4 out of 5 stars  


A Larger Barracuda

The Seagate Barracuda 7200.7 just got bigger and badder with a 160GB behemoth. Now wait a minute, didn't we reviewed a Barracuda 7200.7 not long ago? Yes, we actually did. The first review of the Barracuda 7200.7 was one based on an Ultra ATA-100 interface which came with only 2MB cache. The performance was dismal but it was quite expected since the drive was mainly targeted at the budget end of the market. The second review was a Serial ATA version which comes with a huge 8MB cache. While it was a vast improvement over the 2MB Ultra ATA-100 counterpart (obviously), it was a 120GB drive which is made up of two disks and three heads. Drives with such a configuration are normally slower than those with even amount of heads. Due to this reason, we thought we'd give it a go once more so that we can understand a little more if there were indeed any difference in the results.

The drive's built is exactly the same as the 120GB version. It comes with the same controller board where you'll find the Serial ATA data and power connectors. Unlike other Serial ATA drives, Seagate believes in providing drives that comes under the full SATA specification. This means that you won't find any legacy power connectors on the drive. At this time, most motherboards would be shipping with a SATA power cable, so whether there's a legacy power connector on the drive or not, it doesn't really matter anymore. However, upgraders may want to ensure that the SATA controller cards they are purchasing from the stores come fully equipped with these accessories.

Unlike the 120GB version, this particular sample uses a Samsung memory part for its 8MB cache.


The drive comes with SATA data and power connectors only.

The Barracuda 7200.7 is Seagate's second series of SATA drives, the first was the Barracuda SATA V. Similar to their earlier SATA drives, the Barracuda 7200.7 also boasts of native Serial ATA support. Here's the complete technical specifications of the drive :-

Seagate Barracuda 7200.7 160GB SATA Technical Specifications
Interface Serial ATA
Capacity 160 GB
Model No. ST3160023AS
Number of Disks 2
Number of Heads 4
Bytes per Sector 512
Average Read Seek 8.5 ms
Track-to-Track Seek N/A
Full Stroke Read Seek N/A
Average Latency 4.16 ms
Rotational Speed 7,200 RPM
Data Transfer Rate 33.3MB/sec (external); 683Mbits/s (internal)
Buffer 8 MB
Power Requirements 12.5W (seek), 7.5W (idle), 0.9W (standby)
Weight 635 g

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