Quantum Fireball EX hard disk family is recorded in the 1998 Storage research cohort under Quantum. The current display name and classification are normalization proposals.
Source product name
Quantum Fireball EX family
Source model number
3.2, 5.1, 6.4, 10.2, 12.7 GB capacities
Source manufacturer
Quantum Corporation
Research scope
desktop PCs; IDE/Ultra ATA; OEM sample and distribution channels
Why it existed
manufacturer stated
Quantum addresses higher-capacity IDE desktop storage and OEM demand
Intended users: desktop OEMs and PC users
Engineering response: Fireball EX family with IDE-only interface and multiple capacities
Impress PC Watch · dated June 9 report: June 8 announcement and July mass-production shipment
Contemporary PC Watch reporting identifies Fireball EX, dates its June 8 announcement, and states July mass-production shipment with capacity/interface context.
Open questions and review
First shipment date, OEM/distribution geography, per-capacity SKU identity.
No owner discrepancy decision is recorded. This does not mean there are no unresolved issues.
family variant overlap · follow up
Fireball EL and Fireball EX are different named HDD families but the frozen records are family-level rather than per-capacity SKU records; their capacities must not be retroactively treated as separate candidates without a new scoped scout run.
Quantum reports the Fireball EL and EX as named new products and gives family-level production timing rather than a complete per-SKU launch register.
Follow-up: Keep each as a family-level frozen record; require separate evidence and a declared granularity decision before any SKU expansion.
evidence gap · follow up
Fireball EX has a dated June 8 announcement and July mass production; the frozen evidence does not state a precise first commercial shipment or channel geography.
The report gives the June 8 announcement and says the series would enter mass production in July; it does not document a day of commercial availability.
Follow-up: Retain the dated announcement separately from production timing and seek OEM or distribution shipment evidence if the cohort rule requires commercial shipment.
Original intake sources
These notes preserve the state at intake. Later verification is shown under Release evidence above; an original note saying verification had not occurred is not the current assessment.
Imported source reference; independent verification has not occurred.
Original research note
Typed events: Japanese Quantum/PC Watch report says Fireball EX was announced June 8, 1998 and mass production would begin in July; Quantum's filing corroborates June announcement and July mass production. Preserve family and capacity range; exact first shipment day and regional channel scope remain unknown.