I gave them away or whatever eventually but probably the average time span of which I was aware of them being in use is 15+ years. Striking, radiant white characters make the keys simpler to peruse The keys can endure up to 10 million keystrokes Simply plug it into a USB port on your work area, PC or netbook PC and begin utilizing it right out of the crate Brand: Logitech Model number: 920-002495. Most of the cheap rubber-membrane-or-whatever keyboards failed within a few years, although there are some that kept on working.īut none of the mechanical ones did: Apple Extended Keyboard II (two of them) lasted 20+ years, IBM Model M, Unicomp Model M clone, Das Keyboard somethin something with Cherry MX blue/brown, 3 or 4 chinese knockoffs with cherry knockoff switches, two or three Mattias mechanical keyboards, 4 Filcos, 3 Code Keyboards (the WASM + Jeff Atwood venture) a couple Japanese hackety hacker boards. logitech k120 keyboard function keys Full Review. I have purchased, or somehow gotten, at least 15 mechanical keyboards (and 10+ membrane-or-whatever keyboards) over the past 25 years. The striking thing to me about this is that is is purportedly a "mechanical keyboard" and yet it failed after only 5 years. Type Smarter Tough Worker Easy Does It Comfortable, Quite Typing Spill-Resistant Design Thin Profile Durable Keys Easy to Read Keys Curved.