Despite any number someone claims the fact is that unless you give someone (me included) an exact order number and records of it, the answer is nobody knows. Most of the pins orders I’ve sent to Boardsort, being sorted out beyond what most people would do, have averaged from a few dollars per lb in value up to the mid-high $30s That’s generally about 1-2% below what the refiner I use pays, but the refiner requires much more bulk in an order than I normally have to send (or value, eg jewellery or “pure” gold switches) They have no interest in a $30 order. Or $300 for that matter.
Every pin’s use will make for different weights in the plating. Usb pins are worth far more per pound than vga pins. Old IDE pins are worth $50 or more per pound for gold scrap and ZT pins can be up to a quarter ounce gold per pound of pins.
But each manufacturer is different from another, and sometimes in the same company. Take Monster cable and Apple, who’s cable pins are far more valuable than a Tandy or Go cable
Tascam and Ion are the same company but the former has pins in the $40-$50 per pound value where the latter branding is in the $1-$3 range per lb. Onkyo’s highest line of branded interconnection cables are over $200 per pound in gold recovery but the cables cost $500 per 3 or 5 foot lengths.
If you’re into micro sorting for $$s on internal Computer cables and USB/Lightning/thunderbolt/1394 the ground pins are always thicker plating than any data or dead pins, from any company other than the lowest ends. It’s a general IEE/ISO recommendation. Compact Flash reader pins are also usually thicker plating.
I usually keep monster and ROG connectors, and old IDE pins, and send those to the refinery when I have a few dozen+ pounds.
But the most direct and accurate answer is past the first few days at the pin manufacturer nobody knows.
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