CAS Latency: CL9 for 1333MHZ, CL11 for 1600MHZ. Timing for 1600mhz:11-11-11-28. Bus Speed1333MHz(PC3-10600), 1600MHz(PC3-12800), 1866MHz(PC3-14900). ModelDDR3 4GB 8GB. Capacity per Module4GB, 8GB. Free user support.
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