That's really a Chinese thing and they only use that weird naming convention within China.
The REAL stuff called CE should be actually CE-ATA with only 18 pins to begin with
And then for some VERY stupid reasons they're constantly using both CE and ZIF "interchangeably" to describe the same thing. When we actually check the spec and ZIF40Pin(ATA7) will be right there.
Someone didn't know any better and fell for the Chinese way, LOL
It's so dumb and confusing but that's just the way they wanna coin a certain term in their own way. Strictly and technically speaking, the term CE doesn't really exist as an interface for storage devices.
It's kinda like fortune cookies only exist in Chinatown or any Chinese restaurants in US etc. Feel free to ask someone for the same sorta fortune cookies in mainland China / Hong Kong and the people here will laugh their butts off.
And then kilobytes/megabytes/gigabytes/terabytes are frequently abbreviated by single letters K/M/G/T within China while it's so commonly referred to KB/MB/GB/TB somewhere else.
If they're actually making and selling any drives with CE-ATA or CE interface these days, consequences are losing tons of money because only iPod 6G plus a handful of devices would be compatible now.