Okuma OPUS7000 Main Board E4809-045-148-C w/ DRAM Card E4809-436-060. Okuma OPUS7000 Main Board, part number E4809-045-148-C. This board comes with an attached Okuma OPUS7000 DRAM Memory Card, part number E4809-436-060-B. The EPROM chip is labeled SBP5-A E301A. This is a used part, assumed to be pulled from a working industrial machine. It is untested and sold as-is. The board appears to be in good physical condition with no visible damage like burns or cracked components. Please refer to photos for exact condition and to verify part numbers.