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Is this a high grade telecom board? Thanks.

No, high grade telecom boards won’t come out of anything consumer grade, most scrappers will rarely if ever run into high grade telecom boards unless they’re specifically dealing with scrap from telecommunications companies or other related fields.

You may be able to swing a low grade telecom grade but honestly if it was me doing the sorting I’d probably instinctually just throw that into high grade peripheral pile. Without knowing where it came from, it looks more like a motherboard pulled from a commercial printer or even a high grade surveillance DVR type unit.

High grade telecom boards are going to stick out when you come across one, they’ll either have a ton of heavy gold plating if it’s something that accepts many plugs or/and it will be loaded to the gills with IC chips. The older stuff will be super heavy for a circuit board because of all the silicon weight from the chips. You can find photos and videos explaining high grade telecom and you’ll always see what looks like an absurd amount of big ICs (especially with older boards) and/or gold everywhere.

It does look like quite a few chips were removed that might have helped pull the value of the board up, but this does look like a lower value board overall.

High peripheral to me.

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Here to learn more so I can recycle more
My grades are my own opinion and not an official grade from Boardsort

I am on board with High Peripheral. The board just doesn't have those nice gold plated edge connectors that are so characteristic of Telecom.
I think those chips were not removed. You can see nice solder still on the pads. The BGA flat pack pads still have beautiful balls on them. They just weren't installed before solder process. I could be scratching the wrong tree.
Here to learn like everybody else
My evaluations are my own opinion