Used - Very Good: ASUS P6X58D Premium LGA 1366 ATX Intel Motherboard - Newegg.com
EVGA 131-GT-E767-TR X58 SLI 3 Motherboard - LGA 1366, Intel X58, ATX, SATA 6GB/s, 3-Way SLI Ready, Triple Channel DDR3 support, RAID, USB 3.0 at TigerDirect.com
Gigabyte GA-X58-USB3 Motherboard - Socket 1366, ATX, Audio, PCI Express 2.0, USB 3.0, RAID, SLI at TigerDirect.com
NeweggBusiness - HUANANZHI X58 M-ATX Desktop Motherboard DDR3 LGA 1366 Support AMD RX series with USB 3.0
BLKDX58SO2 - Intel LGA-1366 Intel X58 SATA 6GB/S USB 3.0 ATX Motherboard
JINGSHA X58 Dual CPU Motherboard Set LGA 1366 Socket Onboard CPU L5520 2.27GHz X58 Chipset 4 Channles Support SATA 2.0 USB 3.0|Motherboards| - AliExpress
HUANANZHI X58 RX3.0 - Nonotree
Used - Very Good: ASUS Rampage III Formula LGA 1366 ATX Intel Motherboard - Newegg.com