Showa Denko developed a new disc: Toshiba 30TB hard disk became

At present, in the mass production of mechanical hard disks, the maximum capacity of a single disk is 2.2TB, in order to continue to improve storage density, the need to develop new platter technology, Seagate, Western Digital has put the main energy into HAMR (thermal auxiliary magnetic record).

However, Showa Denko, TDK and Toshiba Hard Disk have joined forces to develop a new hard disk platter based on MAS-MAMR (Microwave Conversion Magnetic Recording) technology, making 30TB of capacity possible.

Showa Electric (SDK) is currently the largest independent hard disk drive platter manufacturer, MAS-MAMR is strictly a subset of microwave-assisted magnetic records, western digital was also very optimistic before, but two years ago began to snow hide, not long ago has been hinted at giving up.

According to the SDK, MAS-MAMR can change the coercive force to make the track narrower, thereby increasing storage density, although there are no clear parameters, but it looks like a single disk should look like at least 3TB.

Based on MAMR, Toshiba has launched a mechanical hard disk with a maximum capacity of 18TB, mainly used in nearline storage and NAS products.