omg...I just told you what the card you have infront of you is...
Im sure, trust me. it is Rambus RIMM
High speed 800, 711 and 600MHz RDRAM storage
184 edge connector pads with 1mm pad spacing
Maximum module PCB size : 133.35mm x 31.75mm x 1.27mm(5.25" x 1.25" x 0.05")
Each RDRAM has 32 banks, for a total of 512, 384, 256, 192, or 128 banks on each
256/288MB, 192/216MB, 128/144MB, 96/108MB, or 64/72MB module respectively
Gold plated edge connector pad contacts
Serial Presence Detect(SPD) support
Operates from a 2.5 volt supply (±5%)
Powerdown self refresh modes
Separate Row and Column buses for higher efficiency