3 Expand System devices.
Memory
Alienware Aurora R5 has four DIMM (RAM) slots, which are accessible by
removing the left-side cover and rotating the power-supply unit. Your
computer supports 4 GB, 8 GB, 16 GB, 32 GB, and 64 GB DDR4 memory of up to
2133 MHz and up to 2400 MHz with XMP (optional).
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