Here are all of the models currently in the database for this manufacturer. Models are sorted into sections by platter density.
Some tips:
All displayed data capacities follow the storage industry's standardized "1 megabyte = 1,000,000 bytes" rule.
All capacity values are rounded: "40GB" and "1.33TB" may actually be 42,646.25[...]MB and 1333.5666[...]GB. Only the manufacturer knows the exact capacity per platter.
The total capacity of each individual model is shown beside each model number.
A platter-head ratio is shown next to the total capacity tag in brackets. It works very simply: a (3/6) ratio indicates three disks and six read/write heads. Models that "waste" a substantial amount of their actual total capacity in order to fit into certain capacity brackets (such as a 320GB unit based on one 500GB platter and two heads) are marked accordingly as [short-stroked].
Miscellaneous details of possible interest are mentioned at my discretion.
Assume that all models are 3.5" form-factor except when tagged otherwise.
A part of Quantum's model numbers that is (as far as I know) not relevant to platter density is blanked out with 'x's throughout this section; for example, the Pioneer SG "1.0AT SG10A011" is listed as "1.0AT SG10Axxx". There is no consistent pattern that I know of to these three alphanumeric characters, other than that models sold as part of PCs by the big makers (Dell, Compaq, etc) use different characters compared to "vanilla" units sold by distributors.
Quantum's HDD department was bought out by Maxtor in 2001; this is another page on the site featuring only super old models. Certain Maxtor model families (including the popular D740X-6L) that arrived after the Quantum acquisition, which physically resemble Quantum designs, can be found in the Maxtor page.
This page was last updated on 2023/05/17.
85MB/platter Section (all drives under here use platters that can hold 85MB of data apiece.)
ProDrive ELS (3663RPM, ATA interface)
42AT PI04Axxx 42MB (8KB cache) (1/1)
85AT PI08Axxx 85MB (32KB cache) (1/2)
127AT PI12Axxx 127MB (32KB cache) (2/3)
170AT PI16Axxx 170MB (32KB cache) (2/4)
114MB/platter Section (all drives under here use platters that can hold 114MB of data apiece.)
GoDrive Daytona (4500RPM, 128KB cache, ATA interface, 2.5" form-factor)
170AT DA17Axxx 170MB (2/3)
341AT DA34Axxx 341MB (3/6)
127MB/platter Section (all drives under here use platters that can hold 127MB of data apiece.)
ProDrive LPS (3600RPM, 128KB cache, ATA interface)
127AT RR12Axxx 127MB (1/2)
129MB/platter Section (all drives under here use platters that can hold 129MB of data apiece.)
GoDrive Daytona (4500RPM, 128KB cache, ATA interface, 2.5" form-factor)
127AT DA12Axxx 127MB (1/2)
256AT DA25Axxx 256MB (2/4)
514AT DA51Axxx 514MB (4/8)
170MB/platter Section (all drives under here use platters that can hold 170MB of data apiece.)
ProDrive LPS (3600RPM, 128KB cache, ATA interface)
170AT RR17Axxx 170MB (1/2)
340AT RR34Axxx 340MB (2/4)
175MB/platter Section (all drives under here use platters that can hold 175MB of data apiece.)
ProDrive LPS (4500RPM, 512KB cache, ATA interface)
525AT EN52Axxx 525MB (3/6)
210MB/platter Section (all drives under here use platters that can hold 210MB of data apiece.)
ProDrive LPS (3600RPM, 128KB cache, ATA interface)
210AT RR21Axxx 210MB (1/2)
420AT RR42Axxx 420MB (2/4)
270MB/platter Section (all drives under here use platters that can hold 270MB of data apiece.)
ProDrive LPS (4500RPM, 128KB cache, ATA interface)
270AT TB27Axxx 270MB (1/2)
540AT TB54Axxx 540MB (2/4)
Note: Versions with SCSI interface were also available; the "AT" and "A" are swapped with "S" and "S". 250 and 500MB Apple-branded variations of the SCSI versions exist; it's not clear whether short-stroking is involved or if the data capacity per disk is different.
ProDrive Maverick (3600RPM, 128KB cache, ATA interface)
270AT MV25Axxx 250MB (1/2 [short-stroked?])*
270AT MV27Axxx 270MB (1/2)
540AT MV50Axxx 500MB (2/4 [short-stroked?])*
540AT MV54Axxx 540MB (2/4)
*Note: These are with Apple branding. It's not clear whether short-stroking is involved or if the data capacity per disk is different.
Europa (3800RPM, 128KB cache, ATA interface, 2.5" form-factor)
540AT EU54Axxx 540MB (2/4)
810AT EU81Axxx 810MB (3/6)
1080AT EU10Axxx 1.08GB (4/8)
365MB/platter Section (all drives under here use platters that can hold 365MB of data apiece.)
ProDrive Lightning (4500RPM, 128KB cache, ATA interface)
365AT LT36Axxx 365MB (1/2)
540AT LT54Axxx 540MB (2/3)
730AT LT73Axxx 730MB (2/4)
425MB/platter Section (all drives under here use platters that can hold 425MB of data apiece.)
Trailblazer (4500RPM, 128KB cache, ATA interface)
420AT TR42Axxx 420MB (1/2)
630AT TR63Axxx 635MB (2/3)
840AT TR84Axxx 840MB (2/4 [short-stroked])
850AT TR85Axxx 850MB (2/4)
540-640MB/platter Section (all drives under here use platters that can hold 540 or 640MB of data apiece.)
Fireball (5400RPM, 128KB cache, ATA interface)
540AT FB54Axxx 540MB (1/2)
640AT FB64Axxx 640MB (1/2)*
1080AT FB10Axxx 1.08GB (2/4)
1280AT FB12Axxx 1.28GB (2/4)*
*Note: Some websites and Quantum documentation designate these as "Fireball II", but the numeral doesn't appear on the units themselves.
850MB/platter Section (all drives under here use platters that can hold 850MB of data apiece.)
Sirocco (4500RPM, 128KB cache, ATA interface)
1700AT SR17Axxx 1.70GB (2/4)
2550AT SR25Axxx 2.55GB (3/6)
1.08-1.29GB/platter Section (all drives under here use platters that can hold 1.08 or 1.29GB of data apiece.)
Fireball TM (4500RPM, 128KB cache, ATA interface)
1080AT TM10Axxx 1.09GB (1/2)
1280AT TM12Axxx 1.28GB (1/2)
1700AT TM17Axxx 1.71GB (2/3 [short-stroked])
2110AT TM21Axxx 2.11GB (2/4)
2550AT TM25Axxx 2.56GB (2/4)
3200AT TM32Axxx 3.22GB (3/5)
3840AT TM38Axxx 3.86GB (3/6)
Note: Unusually (for the 1990s; all of the makers are doing it as of the mid-2000s), the one-disk models use a very different and lighter HDA, looking very similar to that used by the Trailblazers.
Pioneer SG (4500RPM, 64KB cache, ATA interface)
1080AT SG10Axxx 1.08GB (1/2)
1.0AT SG10Axxx 1.08GB (1/2)
2160AT SG21Axxx 2.11GB (2/4)
2.1AT SG21Axxx 2.11GB (2/4)
Bigfoot (3600RPM, 128KB cache, ATA interface, 5.25" form-factor)
1280AT BF12Axxx 1.28GB (1/2)
2550AT BF25Axxx 2.55GB (2/4)
1.61GB/platter Section (all drives under here use platters that can hold 1.61GB of data apiece.)
Fireball ST (5400RPM, 128KB cache, ATA-33 interface)
1620AT ST16Axxx 1.61GB (1/2)
2160AT ST21Axxx 2.11GB (2/3 [short-stroked])
2550AT ST25Axxx 2.55GB (2/4 [short-stroked])
3240AT ST32Axxx 3.23GB (2/4)
4320AT ST43Axxx 4.00GB (3/6? [short-stroked?])*
4320AT ST43Axxx 4.31GB (3/6 [short-stroked])
6480AT ST64Axxx 6.00GB (4/8? [short-stroked?])*
6480AT ST64Axxx 6.45GB (4/8)
*Note: These are with Apple branding. It's not clear whether short-stroking is involved or if the data capacity per disk is different.
2.15-2.17GB/platter Section (all drives under here use platters that can hold 2.15 or 2.17GB of data apiece.)
Fireball SE (5400RPM, 128KB cache, ATA-33 interface)
2.1AT SE21Axxx 2.11GB (1/2)
2.5AT SE25Axxx 2.55GB (2/3 [short-stroked])
3.2AT SE32Axxx 3.23GB (2/3)
4.3AT SE43Axxx 4.00GB (2/4? [short-stroked?])*
4.2AT SE42Axxx 4.20GB (2/4 [short-stroked])
4.3AT SE43Axxx 4.31GB (2/4)
6.4AT SE64Axxx 6.00GB (3/6? [short-stroked?])*
6.4AT SE64Axxx 6.45GB (3/6)
8.4AT SE84Axxx 8.46GB (4/8 [short-stroked])
*Note: These are with Apple branding. It's not clear whether short-stroking is involved or if the data capacity per disk is different.
Bigfoot CY (3600RPM, 128KB cache, ATA interface, 5.25" form-factor)
2111AT CY21Axxx 2.11GB (1/2)
2160AT CY21Axxx 2.11GB (1/2)
3209AT CY32Axxx 3.26GB (2/3)
3240AT CY32Axxx 3.26GB (2/3)
4320AT CY43Axxx 4.34GB (2/4)
4335AT CY43Axxx 4.34GB (2/4)
6480AT CY64Axxx 6.51GB (3/6)
6505AT CY64Axxx 6.51GB (3/6)
2.6GB/platter Section (all drives under here use platters that can hold 2.6GB of data apiece.)
Fireball EL (5400RPM, 512KB cache, ATA-33 interface)
2.5AT EL25Axxx 2.6GB (1/2)
5.1AT EL51Axxx 5.1GB (2/4)
7.6AT EL76Axxx 7.7GB (3/6)
10.2AT EL10Axxx 10.3GB (4/8)
3.4GB/platter Section (all drives under here use platters that can hold 3.4GB of data apiece.)
Fireball EX (5400RPM, 512KB cache, ATA-33 interface)
3.2AT EX32Axxx 3.2GB (1/2 [short-stroked])
4.2AT EX42Axxx 4.2GB (2/3 [short-stroked])
4.3AT EX43Axxx 4.3GB (2/3 [short-stroked])
5.1AT EX51Axxx 5.1GB (2/3)
6.4AT EX64Axxx 6.0GB (2/4? [short-stroked?])*
6.4AT EX64Axxx 6.4GB (2/4 [short-stroked])
8.4AT EX84Axxx 8.4GB (3/5 [short-stroked])
10.2AT EX10Axxx 10.3GB (3/6)
12.7AT EX12Axxx 12.7GB (4/8 [short-stroked])
*Note: These are with Apple branding. It's not clear whether short-stroking is involved or if the data capacity per disk is different.
4.0-4.3GB/platter Section (all drives under here use platters that can hold 4.0 or 4.3GB of data apiece.)
Fireball CR (5400RPM, 512KB cache, ATA-66 interface)
4.3AT CR43Axxx 4.3GB (1/2)
6.4AT CR64Axxx 6.4GB (2/3)
8.4AT CR84Axxx 8.5GB (2/4 [short-stroked])
13.0AT CR13Axxx 13.0GB (3/6)
Bigfoot TX (4000RPM, 128KB cache, ATA-33 interface, 5.25" form-factor)
4.0AT TX04Axxx 4.0GB (1/2)
6.0AT TX06Axxx 6.0GB (2/3)
8.0AT TX08Axxx 8.0GB (2/4)
12.0AT TX12Axxx 12.1GB (3/6)
6.2-6.4GB/platter Section (all drives under here use platters that can hold 6.2 or 6.4GB of data apiece.)
Fireball Plus KA (7200RPM, 512KB cache, ATA-66 interface)
6.4AT KA06Axxx 6.4GB (2/3 [short-stroked])
9.1AT KA09Axxx 9.2GB (2/3)
13.6AT KA13Axxx 13.9GB (3/5 [short-stroked])
18.2AT KA18Axxx 18.5GB (3/6)
Bigfoot TS (4000RPM, 512KB cache, ATA-33 interface, 5.25" form-factor)
8.4AT TS08Axxx 8.5GB (2/3 [short-stroked])
9.6AT TS09Axxx 9.6GB (2/3)
10.0AT TS10Axxx 10.0GB (2/4 [short-stroked])
12.7AT TS12Axxx 12.8GB (2/4)
19.2AT TS19Axxx 19.3GB (3/6)
6.8GB/platter Section (all drives under here use platters that can hold 6.8GB of data apiece.)
Fireball Plus KX (7200RPM, 512KB cache, ATA-66 interface)
10.2AT KX10Axxx 10.0GB (2/3? [short-stroked?])*
13.6AT KX13Axxx 13.7GB (2/4)
20.5AT KX20Axxx 20.0GB (3/6? [short-stroked?])*
20.5AT KX20Axxx 20.6GB (3/6)
27.3AT KX27Axxx 27.0GB (4/8? [short-stroked?])*
27.3AT KX27Axxx 27.4GB (4/8)
*Note: These are with Apple branding. It's not clear whether short-stroking is involved or if the data capacity per disk is different.
Fireball CX (5400RPM, 512KB cache, ATA-66 interface)
6.8AT CX68Axxx 6.0GB (1/2? [short-stroked?])*
6.4AT CX64Axxx 6.4GB (1/2 [short-stroked])
6.8AT CX68Axxx 6.8GB (1/2)
10.0AT CX10Axxx 10.0GB (2/3? [short-stroked?])*
10.2AT CX10Axxx 10.3GB (2/3)
13.0AT CX13Axxx 13.0GB (2/4? [short-stroked?])*
13.6AT CX13Axxx 13.6GB (2/4)
20.4AT CX20Axxx 20.4GB (3/6)
*Note: These are with Apple branding. It's not clear whether short-stroking is involved or if the data capacity per disk is different.
8.7GB/platter Section (all drives under here use platters that can hold 8.7GB of data apiece.)
Fireball lct 08 (5400RPM, 512KB cache, ATA-66 interface)
4.3AT LA04Axxx 4.3GB (1/1)
8.4AT LA08Axxx 8.5GB (1/2 [short-stroked])
13.0AT LA13Axxx 13.0GB (2/3)
17.3AT LA17Axxx 17.4GB (2/4)
26.0AT LA26Axxx 26.0GB (3/6)
10.2GB/platter Section (all drives under here use platters that can hold 10.2GB of data apiece.)
Fireball Plus LM (7200RPM, 2MB cache, ATA-66 interface)
10.2AT LM10Axxx 10.3GB (1/2)
15.0AT LM15Axxx 15.0GB (2/3)
20.5AT LM20Axxx 20.5GB (2/4)
30.0AT LM30Axxx 30.0GB (3/6)
Fireball lct 10 (5400RPM, 512KB cache, ATA-66 interface)
5.1AT LB05Axxx 5.1GB (1/1)
10.2AT LB10Axxx 10.3GB (1/2)
15.0AT LB15Axxx 15.0GB (2/3)
20.4AT LB20Axxx 20.4GB (2/4)
30.0AT LB30Axxx 30.0GB (3/6)
15.0GB/platter Section (all drives under here use platters that can hold 15.0GB of data apiece.)
Fireball lct 15 (4400RPM, 512KB cache, ATA-66 interface)
7.5AT LC07Axxx 7.5GB (1/1)
10.2AT LC10Axxx 10.2GB (1/2 [short-stroked])
15.0AT LC15Axxx 15.0GB (1/2)
20.4AT LC20Axxx 20.4GB (2/3 [short-stroked])
30.0AT LC30Axxx 30.0GB (2/4)
Note: The oddball spindle speed isn't a typo; it's the Low-Cost Technology (that's what "lct" stands for) mantra in full swing.
20GB/platter Section (all drives under here use platters that can hold 20GB of data apiece.)
Fireball Plus AS (7200RPM, 2MB cache, ATA-100 interface)
10.2AT AS10Axxx 10GB (1/1)
20.5AT AS20Axxx 20GB (1/2)
30.0AT AS30Axxx 30GB (2/3)
40.0AT AS40Axxx 40GB (2/4)
60.0AT AS60Axxx 60GB (3/6)
Fireball lct 20 (4500RPM, 128KB cache, ATA-100 interface)
10.2AT LD10Axxx 10GB (1/1)
20.4AT LD20Axxx 20GB (1/2)
30.0AT LD30Axxx 30GB (2/3)
40.0AT LD40Axxx 40GB (2/4)
Note: Quantum's HDD department was bought out by Maxtor in 2001. Products with 40GB platters that were seemingly already in the pipeline turned up (with Maxtor badging on an obviously Quantum-flavoured HDA; how many and what other changes there were, other than ATA-133, are difficult to know) as the DiamondMax D540X-4K and Plus D740X families, listed on the Maxtor page.
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