Which would you select???
I did notice that one had 4 heads the otehr 8... I know nothing about Sata drives at all. Just that I need 4 of the 500gb ones, their about the same price, $275-$285. I also know that OEM doesnt come with support or cables and such, but I probally wouldn't use the cables they sent anyway. I would buy them retail if I found a site but almost all Ive been to doesnt have reatil Sata HD's. Actually I found the Retail WD drives on their website, for about $35 motre than I would pay for retail. Is it worth it, the extra money it is not really a problem for me at this time.
Western Digital Caviar SE16 WD5000KS 500GB
WD Caviar® SE16 7200 RPM w/16MB Buffer
Features and Benefits
* Bare Drive
* 16 MB cache – Bigger cache means faster performance. A massive 16 MB cache combined with up to 300 MB/s transfer rate make these ultra-fast drives the perfect solution for the fully loaded PC with a fast processor.
* Cool operating temperature – WD hard drives are designed to have the lowest power consumption of any high-capacity, desktop-class hard drive which lowers the operating temperature for enhanced drive reliability.
* Whisper quiet – These highly reliable drives deliver technologically advanced acoustics. With its WhisperDrive™ and SoftSeek™ technologies, WD has minimized noise to levels virtually imperceptible to the human ear in home and business environments.
* Ideal for: Designed for use in the fastest PCs on the market, including high-performance business computers, multimedia and gaming systems.
Specifications
Performance Specifications
Rotational Speed 7,200 RPM (nominal)
Buffer Size 16 MB
Average Latency 4.20 ms (nominal)
Contact Start/Stop Cycles 50,000 minimum
Seek Times
Read Seek Time 8.9 ms
Write Seek Time 10.9 ms (average)
Track-To-Track Seek Time 2.0 ms (average)
Full Stroke Seek 21.0 ms (average)
Transfer Rates
Buffer To Host (Serial ATA) 300 MB/s (Max)
Buffer To Disk 748 Mbits/s (Max)
Recommended Configuration Parameters
Number of Heads (Physical) 8
Physical Specifications
Formatted Capacity 500,107 MB
Capacity 500 GB
Interface SATA 300 MB/s
Number of Platters 4
Bytes Per Sector 512
User Sectors Per Drive 976,773,168
Servo Type Embedded
Physical Dimensions
Height 1.028 Inches (Max)
Length 5.787 Inches (Max)
Width 4.00 Inches (+/- 0.010 inch)
Weight 1.32 Pounds (+/- .10 lb)
Electrical Specifications 12 VDC
Read/Write 450 mA
Idle 430 mA
Standby 20 mA
Sleep 20 mA
5 VDC
Read/Write 800 mA
Idle 730 mA
Standby 270 mA
Sleep 250 mA
Power Dissipation
Read/Write 9.50 Watts
Idle 8.75 Watts
Standby 1.60 Watts
Sleep 1.50 Watts
OR
Seagate Barracuda 7200.9 ST3500641AS 500GB Serial ATA 7200RPM Hard Drive w/16MB Buffer
Description
Barracuda 7200.9 is the latest in the Seagate 3.5-inch family of high-capacity desktop drives targeted at mainstream and high-performance PCs and advanced storage applications. The product enables OEMs and system builders to qualify one family of drives from a premier provider for a wide range of storage applications.
Complete family of capacities up to 500 Gbytes
7200-RPM spin speed
Cache memory available in 2-, 8-, and 16-Mbyte options (depending on capacity)
SATA 3Gb/s interface with NCQ and many more SATA features
Also available in ATA/100 interface options
Features and Benefits
* Bare Drive
* Highest available capacity: Up to one-half terabyte (500 Gbytes), enabling OEMs and system builders to qualify one family of drives from a trusted supplier for a wide range of personal storage, entry-level servers and low-cost nearline storage solutions
* SATA 3Gb/s interface offers blazing fast 300-Mbytes/sec interface speed combined with Native Command Queuing (NCQ) for high performance and fast data transfer rates
* Additional SATA features such as hot plug, staggered spin-up, drive LED capable, backward compatible with SATA 1.5Gbs hosts, and compatible with new SATA ClickConnect connectors
* A proven design for shorter qualification times and top reliability
* Rugged drives with industry-leading operating and nonoperating shock specifications
Specifications
Capacity (Gbytes) 500GB
Interface SATA/300 (SATA 3Gb/s) NCQ
Cache (Mbytes) 2, 8, 16
Average Seek (msec) 8.5
Spindle Speed (RPM) 7200
Shock, Operating (Gs) 63
Shock, Nonoperating (Gs) 300
Acoustics, Idle (bels) 2.8
Also is it possiabel to edit a previous post, if so let me know where for the life of my I cant find it.