OWC1866D3E8M16 - 16.0GB 2 X 8GB OWC PC14900 DDR3 1866MHZ ECC MEM UPGKIT OWC Memory fully meets Apple's specifications with special attention to proper thermal specifications. $128.41 $71.34
OWC1866D3R8M24 - 24.0GB 3 X 8GB OWC PC14900 DDR3 1866MHZ ECC REGISTERED MEM UPGKIT OWC Memory fully meets Apple's specifications with special attention to proper thermal specifications. $166.97 $92.76
OWC1866D3MPE16G - 16.0GB OWC PC14900 DDR3 1866MHZ ECC REGISTERED MEM MOD - Size: 16GB (16384MB) - 240-pin SDRAM DIMM - 2048M x 72, Dual Rank ECC Registered Memory Module - Data Rate = 1866MHz - Module Bandwidth 14.9GB/s - CL13 - Voltage 1.5V - RoHS Certified $60.43 $33.57
OWC1866D3R8M32 - 32.0GB 4 X 8GB OWC PC14900 DDR3 1866MHZ ECC REGISTERED MEM UPGKIT OWC Memory fully meets Apple's specifications with special attention to proper thermal specifications. $221.83 $123.24
OWC1866D3R9M48 - 48.0GB 3X 16GB OWC PC14900 DDR3 1866MHZ ECC REGISTERED MEM UPGKIT OWC Memory fully meets Apple's specifications with special attention to proper thermal specifications. $172.30 $95.72