The phrase "a massive cache of" is correct and usable in written English.
It can be used to describe a large collection or store of something, often in contexts related to data, resources, or information.
Example: "The researchers discovered a massive cache of ancient artifacts buried beneath the ruins."
Alternatives: "a large stockpile of" or "an extensive collection of".
More recently, a longtime Booz Allen Hamilton employee named Harold Martin III was charged with hoarding a massive cache of classified NSA data in his home and car.
In the United States, a leading member of the Senate banking committee asked the US government to explain what action it took after receiving a massive cache of the leaked bank accounts.
In the summer of 2013 the whistleblower had left his hotel in Hong Kong and was holed up in Moscow airport applying to various countries, including Norway, for asylum after leaking to the Guardian a massive cache of documents disclosing the shocking extent of US and British surveillance of digital communications.
In September 2010, just six months after the BIJ's launch, Newsweek published an exclusive story about a coalition of media outlets who were working with WikiLeaks on a major story involving a "massive cache of classified US military field reports related to the Iraq war".
Why would Qualcomm want such a massive cache of patents?
– Samwell Tarly discovers at the start of Season 7 that the Citadel is built atop of a massive cache of dragonglass, which at this point appears to be geological in origin, rather than just a store.
LONDON There's nothing really new in a second massive cache of e-mails that hackers have released from the University of East Anglia's (UEA's) Climate Research Unit, U.K. scientists at the center of the controversy said today.
The release of the massive cache of data on Wednesday, by a group calling itself Impact Team, has raised serious questions around security with experts warning it could expose government employees as well as private individuals to blackmail and other criminal activity.
But it wasn't protected with a password, allowing anyone to access and read the massive cache of documents.
The massive cache of cables, into which we had put months of work, had leaked from a former Wikileaks associate to a freelance journalist.
Robert Palmer of the campaign group Global Witness repeated the call for Cameron to act, saying: "The massive cache of leaked documents demonstrates how hidden ownership of shell companies facilitates corruption, tax dodging and other crimes".
