New and used, over 20 available. I've finally torn down all my mining rigs, seeing if these have any interest before I get rid of them.
Starting at $35 per frame, plus shipping. All hardware, grommets, wiring, switches/leds included, plus six USB riser cables. Everything you need to assemble and stack rigs as shown in my picture above. Shipped "flat pack" for cheaper shipping.
Paypal or bitcoin, shipping from the Midwest USA.
Thanks for looking!