Computer Error (Rocket's Secret Machine) from the WoTC Promo set (#16) is a Pokemon trading card released in 1999. It has a rarity of Promo. Current fair market values for Computer Error (Rocket's Secret Machine) are PSA 9: $25, PSA 8: $26, Raw: $6.96. The most recent PSA 9 sale was $28 on April 11, 2026. A raw (ungraded) copy last sold for $6.99 on June 23, 2026. CardIndex has tracked 13 total sales across all grades for this card. There are currently 24 active listings for Computer Error (Rocket's Secret Machine).
