This contemporary and professional name is well suited to a hardware or security brand.
Stacksync has nine letters and just two syllables. Two syllable names make popular global brands. Leading companies using two syllable names include Gucci, Pocket and Honda.
Stacksync.com is a dot-com domain. Dot com domains are synonymous with websites. Once secured, a dot-com all but guarantees no-one else can outrank you for your own name in the long run.