USM

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USM

(USB Mass Storage) See USB mass storage device class.
References in periodicals archive ?
Calluna has headquarters in Glenrothes, Scotland and is floated on the Unlisted Securities Market of the London Stock Exchange.
Julian Schild, Huntleigh's chairman, said: "Getinge's offer represents fair value for Huntleigh's shareholders and reflects the substantial progress made since we floated on the USM (unlisted securities market) in 1985.
I have been responsible for floating some of my own companies on several junior markets including the Unlisted Securities Market, Rule 4.2 (the precursor to Ofex), and my previous business was one of the first companies to float on AIM and the first company to raise money on AIM in June 1995.