To some people,
10 years = a decade.
It's called the Giant Magnetoresistive effect.To IBM Research,
10 years = a revolution.
Ten years ago, it hadn't even been discovered. But now, after intense and dedicated research and development, "giant magnetoresistance" -- or GMR for short -- makes its mass-market debut in IBM's record-breaking 16.8-gigabyte hard disk drive for desktop computers using a special GMR structure developed at IBM called a spin valve.
Most people don't give their hard drive a second thought -- until they run out of disk space. If this describes you, read on. Once you understand the beauty of the GMR/spin valve head, you will never feel the same way about your hard disk drive again.
Parkin first wanted to reproduce the Europeans' results. But he did not want to wait to use the expensive machine that could make multilayers in the same slow-and-perfect way that Gruenberg and Fert had. So Parkin and his colleague, Kevin P. Roche, tried a faster and less-precise process common in disk-drive manufacturing: sputtering. To their astonishment and delight, it worked! Parkin’s team saw GMR in the first multilayers they made. This demonstration meant that they could make enough variations of the multilayers to help discover how GMR worked, and it gave Almaden's Bruce Gurney and co-workers hope that a room-temperature, low-field version could work as a super-sensitive sensor for disk drives.
To see an animation of how MR and GMR recording heads work, click here. Gurney and colleagues worked for several years to perfect the sensor design that is used in the new disk drives. The materials and their tiny dimensions had to be fine-tuned so they 1) could be manufactured reliably and economically, 2) yielded the uniform resistance changes required to detect bits on a disk accurately, and 3) were stable -- neither corroding nor degrading -- for the lifetime of the drive. "That's why it's so important to understand the science," Parkin says. "IBM's intensive studies of GMR enabled us to enhance considerably the performance of some low-field sensors."
The chief source of GMR is "spin-dependent" scattering of electrons. Electrical resistance is due to scattering of electrons within a material. By analogy, consider how fast it takes you to drive from one town to another. Without obstacles on a freeway, you can proceed quickly. But if you encounter heavy traffice, accidents, road construction and other obstacles, you'll travel much slower.
Depending on its magnetic direction, a single-domain magnetic material will scatter electrons with "up" or "down" spin differently. When the magnetic layers in GMR structures are aligned anti-parallel, the resistance is high because "up" electrons that are not scattered in one layer can be scattered in the other. When the layers are aligned in parallel, all of the "up" electrons will not scatter much, regardless of which layer they pass through, yielding a lower resistance.
For an animation showing how electrons of different spins scatter within a GMR structure, .
The E-Impact
We've just explained our astounding new technological achievement and announced our new 16.8 Gigabyte product. Now we'd like to tell you how we envision its effect on your future. Computers are no longer simply relegated to the desktop. They are in our cars, our TVs, VCRs, Stereos and toasters. Increasingly, we are doing business and accomplishing everyday tasks over vast computer networks -- including, but not limited to, the internet. Our world is changing from the physical to the digital. This transformation is no small task and the transition from the present world to the digital one is highly dependent on smart, inexpensive and abundant digital storage.
Imagine a world in which computers are ubiquitous: You will be able to record and store on "micro" hard disk drives anything you want, even everything you see and hear. Furthermore, you will have this information at your fingertips, eyes and ears. IBM Researchers are developing powerful technology that will enable you to use new kinds of information to improve the way we work and live. IBM Research technology will help you design life and business in the next millenium.
Model |
Capacity |
Interface |
DK23EB-40 |
40.007 |
ATA-5 |
DK23EB-20 |
20.003 |
ATA-5 |
DK23EA-60 |
60.011 |
ATA-5 |
DK23EA-40 |
40.007 |
ATA-5 |
DK23EA-30 |
30.005 |
ATA-5 |
DK23DA-40F |
40.007 |
ATA-5 |
DK23DA-30F |
30.005 |
ATA-5 |
DK23DA-20F |
20.003 |
ATA-5 |
DK23DA-10F |
10.056 |
ATA-5 |
DK23CA-75 |
7.501 |
ATA-5 |
DK23CA-30 |
30.005 |
ATA-5 |
DK23CA-20 |
20.003 |
ATA-5 |
DK23CA-15 |
15.103 |
ATA-5 |
DK23CA-10 |
10.056 |
ATA-5 |
DK23BA-60 |
6.01 |
ATA-5 |
DK23BA-20 |
20 |
ATA-5 |
DK23BA-10 |
10.06 |
ATA-5 |
DK23AA-90 |
90.4 |
ATA-5 |
DK23AA-60 |
6.01 |
ATA-5 |
DK23AA-12 |
12.07 |
ATA-5 |
DK239A-65 |
6.49 |
ATA-4 |
DK239A-48 |
4.87 |
ATA-4 |
DK238A-43 |
4.33 |
ATA-4 |
DK238A-32 |
3.25 |
ATA-4 |
DK237A-32 |
3.24 |
IDE/ATA-3 |
DK237A-21 |
2.16 |
IDE/ATA-3 |
DK22AA-18 |
18.14 |
ATA-5 |
DK229A-10 |
10 |
ATA-4 |
DK228A-65 |
6.49 |
ATA-4 |
DK227A-50 |
5.02 |
IDE/ATA-3 |
DK227A-41 |
4.09 |
IDE/ATA-3 |
DK226A-32/32U |
3.24 |
IDE/ATA-3 |
DK226A-21/21U |
2.16 |
IDE/ATA-3 |
DK225A-21 |
2.16 |
Fast ATA-2 |
DK225A-14 |
1.44 |
Fast ATA-2 |
DK224A-14 |
1.44 |
ATA-2 |
DK223A-81 |
810 MB |
ATA-2 |
DK223A-11 |
1.08 |
ATA-2 |
DK222A-54 |
540 MB |
ATA-2 |
DK221A-34 |
340 MB |
AT |
DK213A-18 |
1800 MB |
ATA-2 |
DK213A-13 |
1350 MB |
ATA-2 |
DK212A-81 |
810 MB |
ATA-2 |
DK212A-10 |
1080 MB |
ATA-2 |
DK211A-68 |
680 MB |
AT |
DK211A-54 |
540 MB |
AT |
DK211A-51 |
510 MB |
AT |
DK32EJ-14NW |
147.8 |
SCSI Ultra 320 |
DK32EJ-14NC |
147.8 |
SCSI Ultra 320 |
DK32EJ-14FC |
147.8 |
Fibre Channel |
DK32EJ-72NW |
73.9 |
SCSI Ultra 320 |
DK32EJ-72NC |
73.9 |
SCSI Ultra 320 |
DK32EJ-72FC |
73.9 |
Fibre Channel |
DK32EJ-36NW |
36.9 |
SCSI Ultra 320 |
DK32EJ-36NC |
36.9 |
SCSI Ultra 320 |
DK32EJ-36FC |
36.9 |
Fibre Channel |
DK32DJ-72MW |
73.9 |
SCSI Ultra 320 |
DK32DJ-72MC |
73.9 |
SCSI Ultra 320 |
DK32DJ-72FC |
73.9 |
Fibre Channel |
DK32DJ-36MW |
36.9 |
SCSI Ultra 320 |
DK32DJ-36MC |
36.9 |
SCSI Ultra 320 |
DK32DJ-36FC |
36.9 |
Fibre Channel |
DK32DJ-18MW |
18.4 |
SCSI Ultra 320 |
DK32DJ-18MC |
18.4 |
SCSI Ultra 320 |
DK32DJ-18FC |
18.4 |
Fibre Channel |
DK31CJ-72MW |
73.9 |
SCSI Ultra 160 |
DK31CJ-72MC |
73.9 |
SCSI Ultra 160 |
DK31CJ-72FC |
73.9 |
Fibre Channel |
DK32CJ-36MW |
36.9 |
SCSI Ultra 160 |
DK32CJ-36MC |
36.9 |
SCSI Ultra 160 |
DK32CJ-36FC |
36.9 |
Fibre Channel |
DK32CJ-18MW |
18.4 |
SCSI Ultra 160 |
DK32CJ-18MC |
18.4 |
SCSI Ultra 160 |
DK32CJ-18FC |
18.4 |
Fibre Channel |
DK329H-91WS/DK319H-18WS |
9.1 / 18.2 |
Ultra SCSI |
DK329H-91WC/DK319H-18WC |
9.1 / 18.2 |
Ultra SCSI |
DK329H-91NS/DK319H-18NS |
9.1 / 18.2 |
Ultra SCSI |
DK328H-43WS/DK318H-91WS |
4374/9100 |
Ultra SCSI |
DK328H-43WC/DK318H-91WC |
4374/9100 |
Ultra SCSI |
DK328H-43/DK318H-91 |
4374/9100 |
Ultra SCSI |
DK326C-6 |
601 |
SCSI |
DK326C-10 |
1052 |
SCSI 3 |
DK325C-57 |
573 |
SCSI 2 |
DK315C-14 |
1438 |
SCSI 2 |
DK315C-11 |
1105 |
SCSI 2 |
DK315C-10,11,14/D |
1.05/1.1/1.4 |
SCSI |
DK315C-10 |
1050 |
SCSI 2 |
DK314C-41 |
418.9 |
SCSI |
DK312C-25 |
251.1 |
SCSI |
DK312C-20 |
209.3 |
SCSI |
DK524C-20 |
168.9 |
SCSI |
DK522C-10 |
88 |
SCSI |
DK522-10 |
91 |
ESDI |
DK521-5 |
40 |
ST506 |
DK517C-37 |
2873 |
SCSI (Fast) |
DK516C-16 |
1342.2 |
SCSI |
DK516-15, 12 |
1321, 1056 |
ESDI |
DK515S-78S/D |
670.5 |
SCSI |
DK515C-78D |
670.5 |
SCSI |
DK515C-78 |
670.5 |
SCSI |
DK515-78 |
673.1 |
ESDI |
DK514S-38S/D |
330.1 |
ESMD |
DK514C-38 |
321.8 |
SCSI |
DK514-38 |
330.1 |
ESDI |
146.7 |
ESMD |
|
DK512C-8,12,17 |
146.7 |
SCSI |
DK512-8,12,17 |
146.7 |
ESDI |
DK511-8 |
67.4 |
ST506 |
HUS157373ELF | 15,037 RPM | |
HUS157373EL3600 | HUS157373EL3 | 15,037 RPM |
HUS157373EL3800 | HUS157373EL3800 | 15,037 RPM |
HUS157336ELF200 | HUS157336ELF | 15,037 RPM |
HUS157336EL3600 | HUS157336EL3 | 15,037 RPM |
HUS157336EL3800 | HUS157336EL3 | 15,037 RPM |
IC35L146UCDY10 | IC35L146UCD | 10,000 RPM |
IC35L146UWDY10 | IC35L146UWD | 10,000 RPM |
IC35L146F2DY10 | IC35L146F2D | 10,000 RPM |
IC35L073UCDY10 | IC35L073UCD | 10,000 RPM |
IC35L073UWDY10 | IC35L073UWD | 10,000 RPM |
IC35L073F2DY10 | IC35L073F2D | 10,000 RPM |
IC35L036UCDY10 | IC35L036UCD | 10,000 RPM |
IC35L036UWDY10 | IC35L036UWD | 10,000 RPM |
IC35L036F2DY10 | IC35L036F2D | 10,000 RPM |
IC35L018UCDY10 | IC35L018UCD | 10,000 RPM |
IC35L018UWDY10 | IC35L018UWD | 10,000 RPM |
IC35L018F2DY10 | IC35L018F2D | 10,000 RPM |
IC35L073UCD210 | IC35L073UCD | 10,000 RPM |
IC35L073UWD210 | IC35L073UWD | 10,000 RPM |
IC35L036UCD210 | IC35L036UCD | 10,000 RPM |
IC35L036UWD210 | IC35L036UWD | 10,000 RPM |
IC35L018UCD210 | IC35L018UCD | 10,000 RPM |
IC35L018UWD210 | IC35L018UWD | 10,000 RPM |
IC35L009UCD210 | IC35L009UCD | 10,000 RPM |
IC35L009UWD210 | IC35L009UWD | 10,000 RPM |
IC35L073F2D210 | IC35L073F2D | 10,000 RPM |
IC35L036F2D210 | IC35L036F2D | 10,000 RPM |
IC35L018F2D210 | IC35L018F2D | 10,000 RPM |
IC35L009F2D210 | IC35L009F2D | 10,000 RPM |
IC35L036UCPR15-X | IC35L036UCPR | 15,000 RPM |
IC35L036UWPR15-X | IC35L036UWPR | 15,000 RPM |
IC35L018UCPR15-X | IC35L018UCPR | 15,000 RPM |
IC35L018UWPR15-X | IC35L018UWPR | 15,000 RPM |
DDYS-T36950 | DDYST36950 | 10,000 RPM |
DDYS-T18350 | DDYST18350 | 10,000 RPM |
DDYS-T09170 | DDYST09170 | 10,000 RPM |
DDYF-T36950 | DDYFT36950 | 10,000 RPM |
DDYF-T18350 | DDYFT18350 | 10,000 RPM |
DDYF-T09170 | DDYFT09170 | 10,000 RPM |
DPSS-336950 | DPSS336950 | 7200 RPM |
DPSS-318350 | DPSS318350 | 7200 RPM |
DPSS-309170 | DPSS309170 | 7200 RPM |
DRHS-36V | DRHS36V | 7200 RPM |
DRHS-36D | DRHS36D | 7200 RPM |
DRHL-36L | DRHL36L | 7200 RPM |
DMVS-36 | DMVS36 | 10,000 RPM |
DMVS-18 | DMVS18 | 10,000 RPM |
DMVS-9 | DMVS9 | 10,000 RPM |
DRVS-18V | DRVS18V | 10,020 RPM |
DRVS-18D | DRVS18D | 10,020 RPM |
DRVL-18L | DRVL18L | 10,020 RPM |
DGHS-318200 | DGHS318200 | 7200 RPM |
DNES-318350 | DNES318350 | 7200 RPM |
DNES-309170 | DNES309170 | 7200 RPM |
DNEF-318350 | DNEF318350 | 7200 RPM |
DNEF-309170 | DNEF309170 | 7200 RPM |
DGVS-39110 | DGVS39110 | 10,000 RPM |
DRVS-09V | DRVS09V | 10,020 RPM |
DRVS-09D | DRVS09D | 10,020 RPM |
DRVL-09L | DRVL09L | 10,020 RPM |
DGHS-39110 | DGHS39110 | 7200 RPM |
DDRS-39130 | DDRS39130 | 7200 RPM |
DDRS-34560 | DDRS34560 | 7200 RPM |
DCHS-39100 | DCHS39100 | 7200 RPM |
DCHS-34550 | DCHS34550 | 7200 RPM |
DCAS-34330 | DCAS34330 | 5400 RPM |
DCAS-32160 | DCAS32160 | 5400 RPM |
DORS-32160 | DORS32160 | 5400 RPM |
DFHS-34320 (S4x) | DFHS34320 (S4x) | 7200 RPM |
DFHS-32160 (S2x) | DFHS32160 (S2x) | 7200 RPM |
DFHS-31080 (S1x) | DFHS31080 (S1x) | 7200 RPM |
DFHC-C4x | DFHCC4x | 7200 RPM |
DFMS-Sxx | DFMSSxx | 5400 RPM |
HTS548080M9AT |
80.00 GB |
5400 RPM |
HTS548060M9AT00 |
HTS548060M9AT |
IDE |
HTS548040M9AT00 |
HTS548040M9AT |
IDE |
HTS548020M9AT00 |
HTS548020M9AT |
IDE |
HTS428080F9AT00 |
HTS428080F9AT |
IDE |
HTS428060F9AT00 |
HTS428060F9AT |
IDE |
HTS428040F9AT00 |
HTS428040F9AT |
IDE |
HTS428030F9AT00 |
HTS428030F9AT |
IDE |
HTC424040F9AT00 |
HTC424040F9AT |
IDE |
HTC424020F7AT00 |
HTC424020F7AT |
IDE |
HTS726060M9AT00 |
HTS726060M9AT |
IDE |
HTS726060M9ATX0 |
HTS726060M9AT |
IDE |
IC25N080ATMR04 |
IC25N080AT |
IDE |
IC25N060ATMR04 |
IC25N060AT |
IDE |
IC25N040ATMR04 |
IC25N040AT |
IDE |
IC25N030ATMR04 |
IC25N030AT |
IDE |
IC25N020ATMR04 |
IC25N020AT |
IDE |
IC25T060ATCS05 |
IC25T060AT |
IDE |
IC25T060ATCX05 |
IC25T060AT |
IDE |
IC25T048ATDA05 |
IC25T048AT |
IDE |
IC25N040ATCS04 |
IC25N040AT |
IDE |
IC25N030ATCS04 |
IC25N030AT |
IDE |
IC25N020ATCS04 |
IC25N020AT |
IDE |
IC25N010ATCS04 |
IC25N010AT |
IDE |
IC25N040ATCS05 |
IC25N040AT |
IDE |
IC25N020ATCS05 |
IC25N020AT |
IDE |
IC25N040ATCX05 |
IC25N040AT |
IDE |
IC25N020ATCX05 |
IC25N020AT |
IDE |
DJSA-232 |
DJSA232 |
IDE |
IC25N030ATDA04 |
IC25N030AT |
IDE |
IC25N020ATDA04 |
IC25N020AT |
IDE |
DJSA-230 |
DJSA230 |
IDE |
DARA-225000 |
DARA225000 |
IDE |
DJSA-220 |
DJSA220 |
IDE |
DJSA-210 |
DJSA210 |
IDE |
DJSA-205 |
DJSA205 |
IDE |
DARA-218000 |
DARA218000 |
IDE |
DARA-215000 |
DARA215000 |
IDE |
IC25N015ATDA04 |
IC25N015AT |
IDE |
IC25N010ATDA04 |
IC25N010AT |
IDE |
IC25N006ATDA04 |
IC25N006AT |
IDE |
DCYA-214000 |
DCYA214000 |
IDE |
DARA-212000 |
DARA212000 |
IDE |
DARA-209000 |
DARA209000 |
IDE |
DARA-20600 |
DARA20600 |
IDE |
DCXA-210000 |
DCXA210000 |
IDE |
DCXA-208100 |
DCXA208100 |
IDE |
DYLA-28100 |
DYLA28100 |
IDE |
DYLA-27900 |
DYLA27900 |
IDE |
DYLA-26480 |
DYLA26480 |
IDE |
DADA-26480 |
DADA26480 |
IDE |
DADA-25400 |
DADA25400 |
IDE |
DBCA-206480 |
DBCA206480 |
IDE |
DBCA-204860 |
DBCA204860 |
IDE |
DBCA-203240 |
DBCA203240 |
IDE |
DPLA-25120 |
DPLA25120 |
IDE |
DPLA-24480 |
DPLA24480 |
IDE |
DTCA-24090 |
DTCA24090 |
IDE |
DTCA-23240 |
DTCA23240 |
IDE |
DKLA-24320 |
DKLA24320 |
IDE |
DKLA-23240 |
DKLA23240 |
IDE |
DKLA-22160 |
DKLA22160 |
IDE |
DTNA-22160 |
DTNA22160 |
IDE |
DTNA-21800 |
DTNA21800 |
IDE |
DYKA-23240 |
DYKA23240 |
IDE |
DYKA-22160 |
DYKA22160 |
IDE |
DMCA-21440 |
DMCA21440 |
IDE |
DMCA-21080 |
DMCA21080 |
IDE |
DLGA-23080 |
DLGA23080 |
IDE |
DLGA-22690 |
DLGA22690 |
IDE |
DSOA-21080 |
DSOA21080 |
IDE |
DSOA-20810 |
DSOA20810 |
IDE |
DSOA-20540 |
DSOA20540 |
IDE |
DCRA-22160 |
DCRA22160 |
IDE |
DBOA-2720 |
DBOA2720 |
IDE |
DBOA-2540 |
DBOA2540 |
IDE |
DBOA-2528 |
DBOA2528 |
IDE |
DBOA-2360 |
DBOA2360 |
IDE |
DPRA-21215 |
DPRA21215 |
IDE |
DPRA-20810 |
DPRA20810 |
IDE |
DPRS-21215 |
DPRS21215 |
SCSI |
DPRS-20810 |
DPRS20810 |
SCSI |
DDLA-21620 |
DDLA21620 |
IDE |
DDLA-21215 |
DDLA21215 |
IDE |
DVAA-2810 |
DVAA2810 |
IDE |
DVAS-2810 |
DVAS-2810 |
SCSI |
DHAA-2540 |
DHAA2540 |
IDE |
DHAA-2405 |
DHAA2405 |
IDE |
DHAA-2270 |
DHAA2270 |
IDE |
DHAS-2540 |
DHAS2540 |
SCSI |
DHAS-2405 |
DHAS2405 |
SCSI |
DHAS-2270 |
DHAS-2270 |
SCSI |
HDS722525VLAT |
7200 RPM |
|
HDS722516VLAT20 |
ATA/100 |
7200 RPM |
HDS722516VLAT80 |
ATA/100 |
7200 RPM |
HDS722512VLAT20 |
ATA/100 |
7200 RPM |
HDS722512VLAT80 |
ATA/100 |
7200 RPM |
HDS722580VLAT20 |
ATA/100 |
7200 RPM |
HDS722540VLAT20 |
ATA/100 |
7200 RPM |
HDS722525VLSA80 |
Serial ATA |
7200 RPM |
HDS722516VLSA80 |
Serial ATA |
7200 RPM |
HDS722516VLSA80 |
Serial ATA |
7200 RPM |
HDS722580VLSA80 |
Serial ATA |
7200 RPM |
HDS722580VLSA80 |
Serial ATA |
7200 RPM |
IC35L180AVV207 |
ATA/100 |
7200 RPM |
IC35L120AVV207 |
ATA/100 |
7200 RPM |
IC35L090AVV207 |
ATA/100 |
7200 RPM |
IC35L060AVV207 |
ATA/100 |
7200 RPM |
IC35L030AVV207 |
ATA/100 |
7200 RPM |
IC35L120AVVA07 |
ATA/100 |
7200 RPM |
IC35L100AVVA07 |
ATA/100 |
7200 RPM |
IC35L080AVVA07 |
ATA/100 |
7200 RPM |
IC35L060AVVA07 |
ATA/100 |
7200 RPM |
IC35L040AVVA07 |
ATA/100 |
7200 RPM |
IC35L020AVVA07 |
ATA/100 |
7200 RPM |
IC35L060AVER07 |
ATA/100 |
7200 RPM |
IC35L040AVER07 |
ATA/100 |
7200 RPM |
IC35L030AVER07 |
ATA/100 |
7200 RPM |
IC35L020AVER07 |
ATA/100 |
7200 RPM |
IC35L010AVER07 |
ATA/100 |
7200 RPM |
DTLA-307075 |
ATA/100 |
7200 RPM |
DTLA-307060 |
ATA/100 |
7200 RPM |
DTLA-307045 |
ATA/100 |
7200 RPM |
DTLA-307030 |
ATA/100 |
7200 RPM |
DTLA-307020 |
ATA/100 |
7200 RPM |
DTLA-307015 |
ATA/100 |
7200 RPM |
DTLA-305040 |
ATA/100 |
5400 RPM |
DTLA-305030 |
ATA/100 |
5400 RPM |
DTLA-305020 |
ATA/100 |
5400 RPM |
DTLA-305010 |
ATA/100 |
5400 RPM |
DPTA-353750 |
IDE |
5400 RPM |
DPTA-353000 |
IDE |
5400 RPM |
DPTA-352250 |
IDE |
5400 RPM |
DPTA-351500 |
IDE |
5400 RPM |
DPTA-373420 |
IDE |
7200 RPM |
DPTA-372730 |
IDE |
7200 RPM |
DPTA-372050 |
IDE |
7200 RPM |
DPTA-371360 |
IDE |
7200 RPM |
DJNA-352500 |
IDE |
5400 RPM |
DJNA-352030 |
IDE |
5400 RPM |
DJNA-351520 |
IDE |
5400 RPM |
DJNA-351010 |
IDE |
5400 RPM |
DJNA-372200 |
IDE |
7200 RPM |
DJNA-371800 |
IDE |
7200 RPM |
DJNA-371350 |
IDE |
7200 RPM |
DJNA-370910 |
IDE |
7200 RPM |
DTTA-351680 |
IDE |
5400 RPM |
DTTA-351350 |
IDE |
5400 RPM |
DTTA-351290 |
IDE |
5400 RPM |
DTTA-351010 |
IDE |
5400 RPM |
DTTA-350840 |
IDE |
5400 RPM |
DTTA-350640 |
IDE |
5400 RPM |
DTTA-350430 |
IDE |
5400 RPM |
DTTA-350320 |
IDE |
5400 RPM |
DTTA-371440 |
IDE |
7200 RPM |
DTTA-371290 |
IDE |
7200 RPM |
DTTA-371010 |
IDE |
7200 RPM |
DHEA-38451 |
IDE |
5400 RPM |
DHEA-36481 |
IDE |
5400 RPM |
DHEA-34331 |
IDE |
5400 RPM |
DHEA-36480 |
IDE |
5400 RPM |
DHEA-34330 |
IDE |
5400 RPM |
DCAA-34330 |
IDE |
5400 RPM |
DCAA-33610 |
IDE |
5400 RPM |
DAQA-33240 |
IDE |
5400 RPM |
DAQA-32160 |
IDE |
5400 RPM |
DPEA-31080 |
IDE |
5400 RPM |
DPEA-30810 |
IDE |
5400 RPM |
DPEA-30540 |
IDE |
5400 RPM |
DPES-31080 |
SCSI |
5400 RPM |
DPES-30810 |
SCSI |
5400 RPM |
DPES-30540 |
SCSI |
5400 RPM |
DJAA-31700 |
IDE |
4500 RPM |
DJAA-31270 |
IDE |
4500 RPM |
DSAA-3720 |
IDE |
4500 RPM |
DSAA-3540 |
IDE |
4500 RPM |
DSAA-3360 |
IDE |
4500 RPM |
DSAA-3270 |
IDE |
4500 RPM |
DSAS-3720 |
SCSI |
4500 RPM |
DSAS-3540 |
SCSI |
4500 RPM |
DSAS-3360 |
SCSI |
4500 RPM |
DSAS-3270 |
SCSI |
4500 RPM |
DALA-3540 |
IDE |
4500 RPM |
DALS-3540 |
SCSI |
4500 RPM |