Expansion cards
(most recent first)
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Expansion card#6933
(GSI, INC. MODEL 21) has been associated toExpansion card doc#6697
by TheMajorTechie -
Expansion card#6933
(GSI, INC. MODEL 21) has been associated toExpansion card image#7832
by TheMajorTechie -
Expansion card#6933
(GSI, INC. MODEL 21) has been associated toExpansion card image#7831
by TheMajorTechie -
Expansion card#6933
(GSI, INC. MODEL 21) has been associated toExpansion card type#20
(IDE controller) by TheMajorTechie -
Expansion card#6933
(GSI, INC. MODEL 21) has been associated toExpansion card type#1
(Floppy controller) by TheMajorTechie -
Expansion card#6933
(GSI, INC. MODEL 21) has been associated toExpansion card alias#172
(GSI, INC. Model 21 (1533-21-03-6)) by TheMajorTechie -
Expansion card#6933
(GSI, INC. MODEL 21) has been associated toExpansion card BIOS#124
by TheMajorTechie -
Expansion card#6933
(GSI, INC. MODEL 21) has been associated toExpansion card BIOS#123
by TheMajorTechie -
Expansion card#6933
(GSI, INC. MODEL 21) has been associated toExpansion card I/O port#2341
by TheMajorTechie -
Expansion card#6933
(GSI, INC. MODEL 21) has been associated toExpansion card I/O port#2340
by TheMajorTechie -
Expansion card#6933
(GSI, INC. MODEL 21) has been associated toKnown issue#37
(ROM Corruption) by TheMajorTechie -
Expansion card#6933
(GSI, INC. MODEL 21) has been associated toExpansion slot signal#3
(16-bit ISA) by TheMajorTechie -
Expansion card#6933
has been inserted by TheMajorTechieAttribute Old value New value description
null It is advised that users of this card back up the BIOS ROM before i... expansionSlotInterface
null 16-bit ISA expansionSlotInterfaceSignal
null 16-bit ISA id
null 6933 manufacturer
null GSI, INC. miscSpecs
null MTL: Data bus:: 16-bit, ISA<br/> ... name
null MODEL 21 slotCount
null 1 slug
null gsi-inc-model-21-1533-21-03-6
Expansion card aliases
(most recent first)
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Expansion card alias#172
has been inserted by TheMajorTechieAttribute Old value New value expansionCard
null GSI, INC. MODEL 21 id
null 172 manufacturer
null GSI, INC. name
null Model 21 (1533-21-03-6)
Expansion card BIOSes
(most recent first)
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Expansion card BIOS#123
has been inserted by TheMajorTechieAttribute Old value New value expansionCard
null GSI, INC. MODEL 21 file_name
null gs21-1-15-6633cbf986370203431076.bin id
null 123 updated_at
null 2024-05-02 17:23:05 version
null 1.15 -
Expansion card BIOS#124
has been inserted by TheMajorTechieAttribute Old value New value expansionCard
null GSI, INC. MODEL 21 file_name
null gs21-2-05-6633cbf986e47456317140.bin id
null 124 updated_at
null 2024-05-02 17:23:05 version
null 2.05
Expansion card docs
(most recent first)
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Expansion card doc#6697
has been inserted by TheMajorTechieAttribute Old value New value datePrecision
null y expansionCard
null GSI, INC. MODEL 21 file_name
null gsi-model-21-6633cbf981b8a558913655.pdf id
null 6697 link_name
null GSI Model 21 Intelligent IDE/Four Floppy Host Adapter releaseDate
null 1991-01-01 updated_at
null 2024-05-02 17:23:05
Expansion card images
(most recent first)
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Expansion card image#7831
has been inserted by TheMajorTechieAttribute Old value New value creditor
null TheMajorTechie expansionCard
null GSI, INC. MODEL 21 file_name
null 20240501-191602-large-6633cbf984989921991263.jpg id
null 7831 type
null 2 updated_at
null 2024-05-02 17:23:05 -
Expansion card image#7832
has been inserted by TheMajorTechieAttribute Old value New value creditor
null TheMajorTechie expansionCard
null GSI, INC. MODEL 21 file_name
null 20240501-192326-6633cbf985264513986479.jpg id
null 7832 type
null 3 updated_at
null 2024-05-02 17:23:05
Expansion card I/O ports
(most recent first)
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Expansion card I/O port#2340
has been inserted by TheMajorTechieAttribute Old value New value count
null 1 expansionCard
null GSI, INC. MODEL 21 id
null 2340 ioPortInterface
null 2x20 2.54mm pin header ioPortInterfaceSignal
null IDE connector (40-pin header) -
Expansion card I/O port#2341
has been inserted by TheMajorTechieAttribute Old value New value count
null 2 expansionCard
null GSI, INC. MODEL 21 id
null 2341 ioPortInterface
null 2x17 2.54mm pin header ioPortInterfaceSignal
null Floppy interface (header)