Staples up here in Canada sells a lot of the same stuff that OD does in the USA. I know it's the same chair I had, it's the only one with arms that shape, and I wish I'd kept it tbh as the Racer seats are great for the incline/adjustments/etc, but not always ideal.
Nice clean setup, like I said, mine was almost identical for many years, although I just got the new Astros a month ago to check them out, as I usually use Sony MDRs through a DAC/Amp on my primary gaming box. I really am impressed with Astro, I ordered right when Logitech bought them out so there was confusion with my order, and they upgraded me for free to the external control unit for that. Their quality is 100% IMO, very, very sturdy.