For sale is a very rare Sonnet Crescendo/PCI G4 800MHz processor upgrade card for PCI-based Apple Power Macintosh systems and compatible clones.
This is the Japanese boxed version, labeled PPCG4-800-1M-J, with an 800MHz G4 processor and 1MB cache. The card label shows PPCG4-800-1B01 REV C, Sonnet Crescendo G4 800/1M.
The card has been tested and is fully working. A test screenshot is included in the photos.
Included are the Sonnet Crescendo PCI G4 800MHz upgrade card, original box, Japanese quick start guide / documentation, Sonnet installer CD, floppy disks, and “Powered by Sonnet” case sticker as shown in the photos.
Compatible systems listed on the original packaging include Power Macintosh 7300, 7500, 7600, 8500, 8515, 8600, 9500, 9500/180MP, 9515, 9600, 9600/200MP, Workgroup Server 7350, 8550, 9650, DayStar Genesis and Millennium Series, Akia MicroBook Power 604e, Power Computing compatible models, SuperMac J700 / S900, and UMAX Pulsar models.
Please make sure this upgrade is suitable for your exact Macintosh, ROM, system software, and hardware configuration before purchase. Installation and use may require Sonnet software, compatible Mac OS versions, PRAM reset / restore procedures, and vintage Macintosh troubleshooting knowledge.
Condition is used vintage condition. The card is clean overall. The original box and paper items show age-related wear, stains, discoloration, corner wear, and storage marks as shown in the photos.
Please review all photos carefully for the exact item, included accessories, test result, and cosmetic condition.
Fast and careful shipping from Tokyo, Japan.Please be aware of any customs import duties or taxes in your country.
🇺🇸 US buyers: shipments are sent DDP (Delivered Duty Paid), which means there are no duty fees on delivery, as duties are included in the shipping rate.
Please also note that customs delays may occur, particularly within the EU.
This is vintage hardware/software for vintage computers. Use of this item requires era-appropriate knowledge and compatible hardware/software. Please carefully verify your intended use and compatibility before purchasing. I am happy to answer reasonable questions, but compatibility with every system or configuration cannot be guaranteed, and step-by-step installation support is not provided. Issues arising from incorrect installation, modification, or incompatible use are outside the seller’s responsibility.
I usually ship within 24 hours. If shipping falls on a Saturday in Japan, dispatch may occur the following Monday.
