Use a bunch of USB Flash drives in a RAID array. - YouTube
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High Point Announces RocketU 1144AR USB 3.0 RAID HBA | TechPowerUp
Marvell 88SE9230 Chip SATA/PCIE Raid Controller SATA PCIE SATA Raid Card PCI E SATA Raid PCI Express 4X with Low Profile Bracket|Add On Cards| - AliExpress
High Point Announces RocketU 1144AR USB 3.0 RAID HBA | TechPowerUp