Crucial 8gb 2x4gb ddr3l sdram so dimm 204 pin pc3l 14900 cl13 memory specifications general capacity 8 gb2 x 4 gb upgrade type system specific memory type dram technology ddr3l sdram form factor so dimm 204 pin module height inch 118 speed 1866 mhz pc3l 14900 latency timings cl13 data integrity check non ecc features low voltage unbuffered voltage 135 v lead plating gold miscellaneous colour category green compliant