Just picked up myself an "NEC XP21"monitor!!! That thing is a monstrosity... Vga, d-sub, and rgb bnc connection. 20 inch viewable and 22 inches deep and prob heavier than my wife. lol :
Various CRT Monitors Retro-gaming Retro computers Gateway NEC for Sale in Middletown, PA - OfferUp
Vintage NEC Multisync II JC-1402HMA 1988 Display Tested Not - Etsy
NEC JC-1403HMA | CRT Database
NEC 15" VGA CRT | For Rent in Van Nuys | Digital Image Associates
Nec Electronics Inc. JC-1535 13 inch Industrial Color CRT M | Control System Labs
File:Broken NEC CRT computer monitor 20080509c.jpg - Wikipedia
NEC Display Solutions FE772 White 17" CRT Monitor - Newegg.com
NEC Display Solutions of America
Nec FE772 MultiSync FE772 17" (16” viewable) CRT Monitor, Recommended Resolution 1024 x 768 @ 85 Hz (FE772, FE 772, FE-772)