IBM 2834 DS8884 Model 984 features a 6-core processor, 499.2 TB (base model fully populated) to 1.68 PB physical capacity (with 1.8 TB SFF HDDs and 3.2 TB flash cards), 192 to 768 SFF disk drives and 48 to 96 flash cards (maximum obtained when 84E expansions are attached), 64 GB to 256 GB processor memory, 2 to 16 host adapters (including those in the first 84E expansion), and up to two 84E attach.