eBay used Mac Studio M3 Ultra 512GB (Oct 2026)

ASKING/used-complete-system price. $8,500-9,500 used Oct-2026 (eBay; new $9,499+). Midpoint recorded. PERISHABLE-FIGURE STAMP (added 2026-10-14, uniform across data/supply/ so it is greppable). PRICE CLASS: ASKING price - the rate at which a seller advertises the item for sale, NOT a sold, completed or realised transaction price. OBSERVED: 2026-10-14 RE-VERIFY BY: 2027-01-14 - the repo's quarterly re-verification bar.

lead_time_weeks is null because the channel is a marketplace/secondary listing - availability is a snapshot, not a schedulable delivery.

Largest single-box consumer unified memory. Fastest measured 70B 4-bit of the Apple set (~15.5 tok/s).