Yeah, USB to serial adapters are not hard to find.
Agreed they can be found but how much would it have cost to just add a USB port so you could do firmware updates with a thumb drive like the rest of the world?
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Epson 3500 3D projector 93" Carl's Place Flexiwhite DIY screen Outlaw 976 Pre/Pro Outlaw 7500 for LCR & L/R surrounds 1- Emotiva Mini X-A100 for rear surrounds 2- Outlaw LFM-1 EX subs Oppo BDP-105 Blu-ray/DVD/SACD player Outlaw LCR (Snell Labs) for center channel duty Tekton Lore monitors L/R 4- Emotiva ERD-1s surround speakers Monster HTS3600MKII power center