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Product Details Reviews Articles Discussion Installation
2GB, 240-pin DIMM, DDR3 PC3-12800 memory module
Part Number: CT2G3ERSLS8160B
Module Size: 2GB
Package: 240-pin DIMM
Feature: DDR3 PC3-12800
Specs: DDR3 PC3-12800 • CL=11 • Single Ranked • x8
based • Registered • ECC • DDR3-1600 • 1.35V •
256Meg x 72 •
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DDR3 240-pin DIMM
Approximately 5.25 in. by 1.18 in. (133.35 mm by 30 mm)
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 PC3-8500 (DDR3
1066MHz) and PC3-10600 (DDR3 1333MHz) speeds. 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.
