Within three years of its opening, the Brooklyn facility was producing power supplies for mainframe System/370, System/360 and for the small System/3; printed circuit boards for the IBM 2260 Display Station; as well as external cables for System/360 and System/370.
Mattie Arnold solders wires to a heat sink, one of the major components of a mid-pac -- a voltage and current regulation unit -- at the Brooklyn plant in 1969.
Production had increased in every product category. In 1969, the plant built seven percent of the company's cables and 25 percent of the power supplies; in 1970, it had increased to 25 percent of the cables and 39 percent of the power units. By 1971, there had been 5,500 job applications and 404 people employed, slightly more than half of whom had been unemployed or working part-time before coming to IBM. Three-quarters of the plant's 42 managers were black. Business Week magazine was so impressed that in 1972 it gave the plant an award for "developing human resources."