Brand new GGLABS GRAM/4D (geoRAM clone with 4MB of DRAM) for commodore 64 and 128.
The cartridge adds 4096KB of RAM to the commodore 64/128. Requires geoRAM aware software. Please note that GEOS 2.0r can only address 2MB. To see the full 4MB in GEOS you will need GEOS 2.0rplus, GEOS mp3 or Wheels.A suitable GEOS image can be downloaded on the gglabs website.
Programming information is freely available on the web.

Designed and assembled in USA with all new components.
Documentation and support is available at gglabs.us 1 year warranty and 30 days money back (less shipping cost) if not satisfied
We are happy to combine shipping for multiple items orders. However, due to restrictions, an invoice must be requested before submitting the payment.
International buyers are welcome, however economy international shipping does not provide any tracking outside USA. If tracking is desired, please consider using International Standard which is significantly faster and provides door to door tracking to Canada, Australia, Japan, South Korea, Israel, New Zealand, Singapore, Hong Kong and most European countries. The destination country may charge customs duty and/or VAT. These charges are out of our control and must be paid by the buyer to their own government. Shipping MethodTrackingEstimated Delivery Refund/resend After First class (USA) Good 3-10 days3 weeks Priority Mail (USA) Very Good 2-5 days2 weeks Priority Mail Express (USA) Excellent 2-3 days1 week International Economy None 3-8 weeks10 weeks International Standard Good/None 2-4 weeks6 weeks UPS International Saver Excellent 3-6 days2 weeks