"Apex Storage X21: The Ultimate Solution for Massive SSD Storage"
TL;DR
Apex Storage's X21 board can carry up to 21 M.2 drives, offering up to 168 TB of storage capacity and a peak sequential read/write speed of up to 31 GB/s. The dual-PCB add-in-card has a PCIe x16 interface and promises over 10 million random read/write IOPS. The X21 card comes with two six-pin auxiliary PCIe power connectors and requires external fans for cooling. It can work in multi-card configurations and offers comparable throughput to all-flash-arrays. Pricing and availability details have not been disclosed.
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