ASK NC

I want to update RAM on my new Ts-251D

2 Questions
1) Can I only upgrade upto 16GB?
2) if yes, do I need to get 8 X 2 like https://www.newegg.ca/crucial-16gb-260-pin-ddr4-so-dimm/p/0ZK-0070-00010?Item=9SIAFETB754461

OR can I buy 1 X 16GB

https://www.newegg.ca/crucial-16gb-260-pin-ddr4-so-dimm/p/0RN-0005-000Z4?Description=CT16G4SFD824A&cm_re=CT16G4SFD824A-_-0RN-0005-000Z4-_-Product

Can I upgrade or 32GB? as they have that option too?

Yes, you can upgrade up to 16GB using Crucial RAM on Newegg.You can also find how, here: https://nascompares.com/ram/qnap-ts-251d-compatible-ram-memory-upgrade/I hope this helps.