This is an original Apple IIc ROM chip, part number 342-0033-A, also known as the MON ROM 0. It was used in Apple IIc models manufactured between November 1985 and September 1986, and is identical in function to the later 342-0033-B revision. A must-have for vintage computing enthusiasts, collectors, or anyone restoring a classic Apple IIc.
Key Details:• 🧠 Apple IIc MON ROM 0 – Part #: 342-0033-A• 🗓️ Original production era: Late 1985 to 1986• ✅ Fully tested and verified functional• 🔧 Compatible with Apple IIc motherboard models A2S4000• 🧵 32K ROM with cut W1 and soldered W2 jumper configuration• 🧬 Identical binary content to 342-0033-B revision
Why It’s Special:This chip represents a key moment in Apple’s early home computing history. Whether you're repairing a vintage system or preserving computing heritage, this original ROM is a rare find.
Shipping & Handling:• Ships via USPS Ground Advantage®• Flat rate: $4.99 within the U.S.• International shipping available upon request• Carefully packed in anti-static packaging to ensure safe deliveryReturns:• 30-day return policy. Buyer responsible for return shipping unless item is defective. Vintage Technology LLC

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