APC is primarily a power equipment company, but it also is a big seller of HVAC equipment. Honestly, my eyes gloss over when people talk about server room cooling. But when our IT tech friend came across one of these ACRD500 beasts being de-installed, I was impressed.
This is a 1000lb cabinet filled with giant quiet fans, sensors, regulators, and filters. Its impressive. While probably not worth the $16000 price tag, it was well made. Since no one has ever asked for rack row coolers units, I decided not to buy it. Maybe when it gets 95 degrees again here, I might regret not having this beast in our warehouse.