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WD Black SN7100 2 TB Review - The New Best SSD
Test Setup »Packaging
The Drive
The drive is designed for the M.2 2280 form factor, which makes it 22 mm wide and 80 mm long.
PCI-Express 4.0 x4 is used as the host interface to the rest of the system.
On the PCB you'll find the controller and just one flash chip, a DRAM cache chip is not included.
Chip Component Analysis
WD's new A101-000172-A1 "Polaris 3" controller is designed for DRAM-less operation using four flash channels. It supports HMB, to use a small portion of the system's memory for the mapping tables of the SSD.
The single flash chip is a Kioxia 218-layer 3D TLC NAND, it has a capacity of 2 TB.
Feb 13th, 2025 01:58 EST
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