Apacer 512MB DDR266 SDRAM Memory
Specifications:

Memory: 512 MB
Type: 184 Pin DDR SDRAM
Error Checking: Non-ECC
Registered/Unbuffered: Unbuffered
Cas Latency: 2.5
Support Voltage: 2.5V
Bandwidth: 2.1 GB/s
Organization: 64M x 64 -Bit
Warranty: Lifetime Direct Manufacturer Warranty