A hard disk drive with the disks and spindle motor hub removed. In the center, the internal structure of the spindle motor can be seen. To the left of center is the actuator with a read-write head under the tip of its very end (near center); the orange wires along the side of the arm are part of the path the signals take to and from the read-write head. The flexible, somewhat 'U'-shaped, ribbon cable barely visible below and to the left of the actuator arm is another part of its path connecting the head to the controller board on the opposite side.
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Hard Drives

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Apple TV MC572LL/A (NEWEST VERSION) $87.00 AmazonBasics USB Cable - 2.0 A Male to Micro B (6 $6.39
16GB Cruzer USB 2.0 Flash Drive $9.00 Western Digital My Passport Essential SE 1 TB USB $149.99
Toshiba Canvio Basics Portable Hard Drive 320 GB U $64.99 Western Digital My Passport Essential 500 GB USB 3 $75.00
Western Digital WD Elements 2 TB USB 2.0 Desktop E $123.24 Apple MacBook Pro MD313LL/A 13.3-Inch Laptop (NEWE $1,079.00
Vantec NexStar TX 2.5-Inch SATA to USB 2.0 Externa $7.99 Apple MacBook Pro MD311LL/A 17-Inch Laptop (NEWEST $1,370.00
Western Digital My Passport Carrying Case -- Black $4.99 Crucial 128 GB m4 2.5-Inch Solid State Drive SATA $173.99
Vantec CB-ISATAU2 SATA/IDE to USB 2.0 Adapter Supp $17.19 Toshiba Canvio 1.0 TB USB 3.0 Portable Hard Drive $111.48
Seagate Barracuda Green 2TB SATA 6Gb/s 64MB Cache $129.00 Seagate Expansion 500 GB USB 3.0 Portable External $88.00
Seagate Expansion 500 GB USB 2.0 Portable External $79.99 AmazonBasics USB 2.0 A-Male to Mini-B Cable (6 Fe $3.71
SILVERSTONE SDP08 3.5 to 2 X 2.5-Inch Bay Converte $8.99 Mediabridge - Hi-Speed USB 2.0 Cable (6 Feet) $1.49
Western Digital Caviar Green 2 TB Desktop Hard Dri $127.00 Asus Eee Pad Transformer TF101 Mobile Docking $107.64
Seagate FreeAgent GoFlex 500 GB USB 3.0 Ultra-Port $90.98 SATA/PATA/IDE Drive to USB 2.0 Adapter Converter C $4.79
Apple Mac Mini MC815LL/A Desktop (NEWEST VERSION) $630.00 Western Digital Caviar Blue 500 GB SATA III 7200 R $80.00
Case Logic EHDC-101 Hard Shell 2.5-Inch Portable H $5.88 Case Logic QHDC-101 Portable EVA Hard Drive Case $4.75
Sony SMP-N100 Streaming Player with Wi-Fi $43.99 Western Digital My Passport Essential SE 1 TB USB $130.49
SanDisk 16 GB Class 2 microSDHC Flash Memory Card $5.95 Western Digital 320GB Scorpio Blue SATAII 5400RPM $62.75
Case Logic Compact Portable Hard Drive Case (Black $4.79 Western Digital Caviar Black 1 TB SATA III 7200 RP $112.79
Mediabridge - Hi-Speed USB 2.0 Cable - Gold Plated $6.34 Crucial 64 GB m4 2.5-Inch Solid State Drive SATA $104.99
Western Digital Caviar Black 2 TB SATA III 7200 RP $210.00 Toshiba Canvio 500 GB USB 3.0 Basics Portable Hard $79.24
Netgear N600 Wireless Dual Band Gigabit Router - P $116.99 Xbox 360 320GB Hard Drive $89.00
Satechi 12 Port USB Hub with Power Adapter & 2 $27.99 Seagate Expansion 2 TB USB 3.0 Desktop External Ha Too low to display
Seagate Barracuda 7200 500 GB SATA 6.0 Gb-s 16 MB $79.00 Western Digital Caviar Green 2 TB Desktop Hard Dri $110.00
Western Digital Caviar Green 3 TB 5400 RPM SATA II $179.99 Crucial 256 GB m4 2.5-Inch Solid State Drive SATA $320.00
Western Digital My Book Essential 2 TB USB 3.0/2.0 $143.93 Apple iMac MC309LL/A 21.5-Inch Desktop (NEWEST VER $985.70
2.5 USB 2.0 SATA Hard Drive HDD Case Enclosure $2.30 Western Digital WD Elements 2.5 TB USB 2.0 Externa $129.90
Seagate Momentus XT 750 GB 7200RPM SATA 6Gb/s 32 M $199.95 Apple MacBook Pro MD318LL/A 15.4-Inch Laptop (NEWE $1,399.00
USB Highspeed 7 Port Hub w/ AC Adapter (Silver) $1.49 Western Digital 320 GB Caviar Blue SATA 6 Gb/s 720 $68.46
Micro USB Host Cable (OTG Cable) - Xoom, Galaxy S2 $9.99 Western Digital My Passport Essential 500 GB USB 3 $84.99
LaCie Rugged All-Terrain 500 GB FireWire 800/ Fire $139.99 Western Digital WD Elements 1 TB USB 2.0 Desktop E $96.50
ASUS A53Z-EH61 15.6-Inch Versatile Entertainment L $599.99 USB 2.0 External 2.5 IDE HDD Enclosure Case Blue $9.00
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Prices current as of last update, 01/23/12 10:27am.

Price is accurate as of the date/time indicated. Prices and product availability are subject to change. Any price displayed on the Amazon web site at the time of purchase will govern the sale of this product

See also...
10.1 GB-20.0 GB, Hard Drives, Drives for Laptops, Drives, Controllers & Storage
20.1-30.0 GB, Hard Drives, Drives for Laptops, Drives, Controllers & Storage
30.1-40.0 GB, Hard Drives, Drives for Laptops, Drives, Controllers & Storage
40.1-60.0 GB, Hard Drives, Drives for Laptops, Drives, Controllers & Storage
5.0GB -10.0GB, Hard Drives, Drives for Laptops, Drives, Controllers & Storage
60.1 GB & More, Hard Drives, Drives for Laptops, Drives, Controllers & Storage
Less than 5GB, Hard Drives, Drives for Laptops, Drives, Controllers & Storage

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