Crucial ballistix sport xt 4gb ddr3 1866 cl10 bls4g3d18ads3j
4gb ddr3 memory capacity 4 gb bus clock speed 1 866 mhz specification pc3 14900 memory latency cl 10 10 10 27 ram operation mode dual channel voltage 155 v form factor 240 pin width 175 mm max operating temperature 85 c