Spare capacity, mostly. That’s why they have higher endurance. If you want to double the endurance of a given drive, tell the controller to allocate twice as many spare blocks and report less capacity than you would otherwise.
In this case, you are also paying a premium for the PCIe attachment instead of SAS, and a lot for price elasticity. You see, with drives like these you slash space and energy consumption in relation to HDDs by a large number, and that allows you to pay a premium for the device, because, at the end of its lifetime, it’ll have more than covered the cost difference in saved space and energy.
The word "enterprise".
https://www.opencompute.org/documents/datacenter-nvme-ssd-sp...
They’re currently selling for $942.72 on Amazon.
The price graphs of these are wild, wow. https://camelcamelcamel.com/product/B0CHGT1KFJ
Looks like prices for NAND spiked at the end of last year, a couple of months behind DRAM.
Happy not to be building or buying any new computers these days.
I haven't bought a hard drive or an SSD in at least a decade (I get stuff for free, basically) but…that seems a bit high, right?
Seems like well-rated consumer-level SSDs cost around $250 for 1TB right now.
What accounts for the premium price/TB of these extremely high capacity enterprise-targeted drives?