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The product is a 4 x Samsung 512MB DDR2 Registered ECC (Error-Correcting Code) server memory module with the specifications PC2-3200R-333. This means it is a DDR2 type of RAM, has a speed of 3200 MT/s (or DDR-400), and is designed for servers, featuring the "-R" for Registered and "-333" for a CAS latency of 3. The "-A3" likely refers to a specific revision or sub-model.
Detailed breakdown of the specifications:
Samsung: The manufacturer of the RAM module.
512MB: The capacity of the memory module is 512 megabytes.
PC2-3200R:
o PC2: Indicates it is a DDR2 type of RAM.
o 3200: Refers to the transfer speed of 3200 million transfers per second, which is equivalent to a DDR-400 speed.
o R: Denotes that it is "Registered" (or buffered) memory, which is common in servers to reduce load on the memory controller.
-333: This is the CAS (Column Access Strobe) latency, which is 3 for this module.
-A3: This is a revision or sub-model number, a common suffix for Samsung memory modules.
ECC: This is an Error-Correcting Code, which helps detect and correct data corruption, a crucial feature for server reliability.