48 x DIMM Slots (12 DDR4 DIMMs per CPU, 6 channels with 2 slots per channel, 16 GB - 6 TB). : 16 GB - 6 TB. Serial 1 (9-pin): 1 x RS-232-C. Graphics (15-pin): 2 x VGA (1 x front, 1 x rear). USB 3.x ports: 5 x USB 3.0 (2x front, 2x rear, 1x internal).
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