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DDR2 SDRAM (Double Data Rate 2 Synchronous Dynamic Random Access Memory) is a type of memory chip used in various electronic devices. It operates at a higher speed than its predecessor, DDR SDRAM, by transferring data on both the rising and falling edges of the clock signal. This dual-edge data transfer allows for increased bandwidth and improved performance in memory-intensive applications.
| Data Rate | 400 to 800 MT/s |
| Bus Width | 64 bits |
| Voltage | 1.8V |
| Capacity | 256 MB to 8 GB per module |
| Form Factor | DIMM and SO-DIMM |
When selecting DDR2 SDRAM, buyers should consider the required data rate and capacity based on their specific application needs. It's important to verify compatibility with the motherboard and other components. Additionally, buyers should specify the form factor (DIMM or SO-DIMM) and any necessary memory configurations, such as dual-channel setups. Quantities may vary based on project requirements, so it's advisable to request quotes for bulk orders if needed.
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DDR2 offers higher data rates and improved performance compared to DDR.
No, DDR2 is not backward compatible with DDR motherboards.
The maximum capacity typically reaches up to 8 GB per module.
While it has been largely replaced by DDR3 and DDR4, it is still used in older systems.
DDR2 SDRAM typically operates at 1.8V.
The common form factors are DIMM for desktops and SO-DIMM for laptops.