The manufacturer may not be obliged to give the details but the hacker also doesn't need to be pathetically grateful for what they do deign to give.

Most companies are quite happily to lie, obfuscate and omit to the hilt if they can: nearly every labelling regulation is a patch over some fuckery. The relationship is often pretty adversarial, especially at retail.

Doubly so in computer memory devices, which is an industry particularly filled with flimflam and chancers.