Two years ago, Samsung unveiled a massive 15.36TB SSD and now it has doubled that storage in a single drive - the PM1643. It is a SAS drive with 30.72TB capacity that is built out of the latest V-NAND chips. The new drive promises speeds of up to 2,100MB/s sequential read and 1,700MB/s write (400K/50K IOPS for random reads/writes respectively). To achieve such performance numbers, Samsung used Through Silicon Via tech - the drive includes 40GB of DRAM. This is clearly an industrial drive and has protection from memory loss if the power suddenly goes out and there's ECC to maintain...
Source: https://www.gsmarena.com/samsung_unveils_3072tb_ssd_with_blazing_fast_performance-news-29696.php