SSD capacities increase as industry eyes 128 TB drives

[UK Sentinel]

Maximum SSD capacity is expected to double from its current 61.44 TB maximum by mid-2025, giving us 122 TB and even 128 TB drives, with the prospect of exabyte-capacity racks.

Five suppliers have discussed and/or demonstrated prototypes of 100-plus TB capacity SSDs recently.

Western Digital demonstrated a 128 TB SSD at FMS 2024 in Santa Clara, California, this month. It uses WD and Kioxia’s BiCS8 technology with 218-layers and QLC format cells. We anticipate WD producticing this as a successor to its current Ultrastar DC SN655, with its 3.84 TB to 61.44 TB capacity range, PCIe gen 4 interface, and BiCS5 112-layer TLC NAND technology.

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SSD capacities set to surge as industry eyes 128 TB drives

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