“Then don’t buy Standard or Equivalent,” Elena said flatly. “They will drift out of spec within three months. Our High Quality uses a different ceramic substrate and gold-bonded wires. It’s rated for 105°C continuous. It’ll run for years.”

: It could be a batch or assembly number for a specific high-grade circuit board or industrial networking equipment.

Could you tell me what kind of this code is printed on? Knowing the brand or category would help me find the exact technical specifications for you.

“High quality is just marketing,” muttered Tom, the head of maintenance. “Get the cheapest one overnight.”