noun
catalog spec; specifications on paper
Refers to the advertised technical specifications of a product, often contrasted with real-world performance. Common in computing and electronics contexts.
このスマホのカタログスペックはすごいけど、実際の動作はどうかな。
The catalog specs of this smartphone are impressive, but I wonder about its real-world performance.
カタログスペックだけでは製品の良し悪しは判断できない。
You can't judge a product's quality just by its catalog specs.