This is a Samsung 256MB DDR SDRAM SO-DIMM module designed for laptops/notebooks.
Key Specifications
• Manufacturer — Samsung Electronics (made in Korea)
• Part Number — M470L3224DT0-CB0
• Alternative Labeling — PC2100S-25330-A0
• Memory Type — DDR SDRAM (DDR1)
• Capacity — 256 MB
• Speed — PC2100 (DDR-266 MHz effective clock rate)
• CAS Latency (CL) — 2.5
• Form Factor — 200-pin SO-DIMM
• Voltage — 2.5V
• Error Correction — Non-ECC
• Buffering — Unbuffered
• Rank/Configuration — Typically dual rank with 8 x 32MB (or equivalent) chips; chips visible are Samsung K4H561638D-TCB0 (256Mbit / 32MB DDR SDRAM dies each)
• Bandwidth — Approximately 2.1 GB/s theoretical maximum
This is an older DDR1 module from around the early 2000s, commonly used in laptops from that era (e.g., supporting Intel Pentium 4-M or similar mobile processors). It’s now considered vintage/obsolete and has very limited practical use in modern systems.