April 30, 2019 by $245.00 MEM2 16Mb of RAM, internal MEM2 - Extended Memory Upgrade for PS4550/PS3550 quantity Add to cart Category: Accessories Related products WAR51 – Extend your existing PS5000 Deluxe Warranty by 12 months to a total of 2 years $345.00 Add to cart WAR42 – 2 Year Extended Deluxe Warranty for PS4550/PS3550, ONLY with New PS4550 or PS3550 $495.00 Add to cart SD-MEM – SD Memory Card, 8GB $20.00 Add to cart USB-RS232 – USB to RS232 Adapter $75.00 Add to cart