Ending today, Refurb4Less via eBay offers the refurbished HP 260-A010 Pentium Quad-Core 1.6GHz Slimline Desktop PC for $169.99. Apply coupon code "C20SPRING" and pay with PayPal to cut the price to $136. With free shipping, that's an $8 drop from last week's mention and $144 under the lowest total price we could find for a new unit. It features an Intel Braswell Pentium J3710 1.6GHz quad-core processor, 4GB RAM, 1TB 7200 rpm hard drive, DVD burner, 802.11n wireless, Bluetooth 4.0, media card reader, and Windows 10.

Note: A 90-day warranty applies, although it's unclear who supports it. This coupon can only be used once per account.