Gha, i remember green flickering lights when i see these sticks.
Are these still functional ?
Honestly, I don't know!
The story is, in July 2013, I received my BFL Jalapeño miner (received it within 4 weeks of them FINALLY starting shipments, so it would have done well had I kept it), plugged it in, took a screenshot of it hashing away, and sold it on eBay for... a bit. Replaced that "hashpower" with a bunch of these, and they worked fine until I realized the return was probably negligible. The computer they were plugged into has long since been disposed of, and I haven't thought to look for instructions to get them to work with my MacBook, so they're pretty much as-is, but last I knew they worked.
Not much of an answer, but that's all I knew.