Kingston Apple 4GB Kit (2x2GB Modules) 667MHz DDR2 SoDimm iMac and Macbook Memory

Kingston's KTA-MB667K2/4GR is a 4GB Kit (2pcs of 256M X 64) Non-ECC 667MHz 200-pin Unbuffered SODIMM (SDRAM-DDR2, 1.8V, CL5, FBGA, Gold). This memory is designed for the following systems: iMac Intel Core 2 Duo 17-inch CD (Late 2006), iMac Intel Core 2 Duo 20-inch (Mid 2007), iMac Intel Core 2 Duo 24-inch (Mid 2007), MacBook Pro 15.4-inch 2.2GHz/2.4GHz/2.6GHz, and MacBook Pro 17-inch 2.4GHz/2.6GHz.

PNY OPTIMA 1GB DDR 333 MHz PC2700 Notebook / Laptop SODIMM Memory Module MN1024SD1-333

DDR (Double Data Rate SDRAM) is a DRAM technology that supports data transfers on both the rising and the falling edges of each clock cycle. This effectively doubles the memory chip`s data throughput and is more efficient than legacy SDR technology. PNY manufactures DDR memory upgrades rated at PC2100, PC2700, and PC3200. They are compatible with desktop and notebook computers and processors such as Intel`s Pentium, Celeron, AMD`s Athlon, Sempron and others. PNY upgrade modules are compatible with systems from Apple, Compaq, DELL, Gateway, HP, IBM and over 5000 other systems. Boost the performance of your PC to its maximum capability. PNY memory upgrades will prove to be an outstanding value both now and in the future.

Crucial 2GB 256Mx64PC2-5300 CT25664AC667 DDR2 200-Pin SODIMM Laptop Memory

A small outline dual inline memory module (SODIMM) consists of a number of memory components (usually black) that are attached to a printed circuit board (usually green). SODIMMs get their name because they are smaller and thinner than regular DIMMs. The gold pins on the bottom of the SODIMM provide a connection between the module and a socket on a larger printed circuit board. The pins on the front and back of a SODIMM are not connected.

200-pin SODIMMs are used to provide DDR and DDR2 SDRAM memory for notebook computers. 200-pin SODIMMs are available in PC2700 DDR SDRAM, PC3200 DDR SDRAM, DDR2 PC2-6400 SDRAM, DDR2 PC2-5300 SDRAM, DDR2 PC2-4200 SDRAM and DDR2 PC2-3200 SDRAM. To use DDR or DDR2 memory, your system motherboard must have 200-pin SODIMM slots and a DDR- or DDR2-enabled chipset. A DDR or DDR2 SODIMM will not fit into a standard SDRAM SODIMM socket. (Information about which memory technology your system uses is included in the Crucial Memory Advisor™ tool.)

The number of black components on a 200-pin SODIMM can vary, but it always has 100 pins on the front and 100 pins on the back, for a total of 200. 200-pin SODIMMs are approximately 2.625 inches long and 1.25 inches high, though the heights can vary. Like 144-pin SODIMMs, 200-pin SODIMMs have one small notch within the row of pins; however, the notch on the 200-pin SODIMMs is closer to the left side of the module.

Crucial 2GB 667 Mhz CT25664AC667 DDR2 200-Pin SODIMM Laptop Memory

A Little outline dual inline memory module (SODIMM) comprises of an amount of memory factors (usually black) that are came with a printed circuit board (generally green). SODIMMs acquire their name as they're littler and thinner than regular DIMMs. The gold pins on the bottom of the SODIMM give a connection between the module and a socket on a bigger printed circuit board. The pins on the front and back of a SODIMM are not joined.

200-pin SODIMMs are used to give DDR and DDR2 SDRAM computer memory for notebooks. 200-pin SODIMMs are available in PC2700 DDR SDRAM, PC3200 DDR SDRAM, DDR2 PC2-6400 SDRAM, DDR2 PC2-5300 SDRAM, DDR2 PC2-4200 SDRAM and DDR2 PC2-3200 SDRAM. To apply DDR or DDR2 memory, your system CPU board must have 200-pin SODIMM slots and a DDR- or DDR2-enabled chipset. A DDR or DDR2 SODIMM won't fit into a stock SDRAM SODIMM socket. (Info about which memory technology your system consumptions is added in the Crucial Memory Advisor instrument.)

The number of black parts on a 200-pin SODIMM can deviate, but it always has 100 pins on the front and 100 pins on the back, for a sum of 200. 200-pin SODIMMs are roughly 2.625 inches long and 1.25 inches high, while the heights can change. Like 144-pin SODIMMs, 200-pin SODIMMs have one little notch inside the row of pins; even so, the notch on the 200-pin SODIMMs is nearer to the left side of the module.