Crucial 4GB DDR3 SDRAM Memory Module - CT51272BB1339

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Product Overview

Crucial 240-pin DIMMs are used in DDR3 memory for desktop computers. DDR3 is the latest generation of memory with an improved architecture that allows it to transmit data more quickly.

A dual inline memory module (DIMM) consists of a number of memory components (usually black) that are attached to a printed circuit board (usually green). The gold pins on the bottom of the DIMM provide a connection between the module and a socket on a larger printed circuit board. The pins on the front and back of a DIMM are not connected to each other.

Each 240-pin DIMM provides a 64-bit data path (72-bit for ECC or registered or Fully Buffered modules). (The Ballistix™ and Ballistix Tracer™ high-performance memory do not come in 72-bit or registered modules.) Standard DDR3 240-pin DIMMs are currently available in DDR3 PC3-8500 SDRAM. Additional speeds will be added as the technology becomes available.

To use DDR3 memory, your system motherboard must have 240-pin DIMM slots and a DDR3-enabled chipset. This is because a DDR3 SDRAM DIMM will not fit into a standard DDR2 DIMM socket or a DDR DIMM socket.

The number of black components on a 240-pin DIMM can vary, but it always has 120 pins on the front and 120 pins on the back, for a total of 240. 240-pin DIMMs are approximately 5.25 inches long and 1.18 inches high, though the heights can vary. While 240-pin DDR3 DIMMS, 240-pin DDR2 DIMMs, 184-pin DDR DIMMs, and 168-pin DIMMs are approximately the same size, 240-pin DIMMs and 184-pin DIMMs have only one notch within the row of pins.


Manufacturer Crucial
Mfg Part# CT51272BB1339
SKU 210796479
UPC 649528743312
UPC 14 00649528743312
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Manufacturer Crucial Technology
Manufacturer Website Address
Product Type RAM Module
Product Name 4GB DDR3 SDRAM Memory Module
Manufacturer Part Number CT51272BB1339
Form Factor 240-pin DIMM
Dimensions 1.18" Width x 5.25"
Memory Size 4 GB
Memory Technology DDR3 SDRAM
Memory Speed 1333 MHz
Standard Warranty Lifetime Limited
Tech Specs
240-pin DIMM
DDR3 PC3-10600
Dual Ranked
512Meg x 72
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