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Upgrade your Apple computer's memory with a set of SK Hynix 8GB RAM sticks. These modules each have a capacity of 8GB, for a total of 16GB, and are compatible with the PC4-2400T-SC0-11 specification. The brand is RAM and the model number is HMA851S6AFR6N-UH NA AC. These modules are used, but in excellent working condition and can improve your computer's performance.