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SDR (Single Data Rate) SDRAM is legacy desktop memory.
It transfers data once per clock cycle.
It operates at 3.3V, features 168 pins, and uses dual notches on the bottom edge.
Capacities are very small, ranging from 32 MB to 512 MB per stick. []
Key Specifications
| Specification | Details |
| Memory Type | SDR SDRAM (Single Data Rate) |
| Form Factor | DIMM (Dual In-Line Memory Module) for desktops |
| Pin Count | 168-pin |
| Operating Voltage | 3.3V |
| Data Transfer Rates | 66 MHz, 100 MHz, or 133 MHz |
| Module Labels | PC66, PC100, PC133 |
| Typical Capacity | 32 MB to 512 MB per stick |
