Looks like an IMSAI PCS?
Here's a good picture of one:
https://www.reddit.com/r/retrobattlestations/comments/71e4dy/imsai_pcs_8030…
Some more info here: 
http://www.old-computers.com/museum/computer.asp?c=342
On Thu, Oct 18, 2018 at 10:11 PM John Foust via cctalk <
cctalk at classiccmp.org> wrote:
 Pardon the post of content from elsewhere, but this one had me puzzled,
 perhaps because I'd been puzzled earlier the same day by a IMSAI advert
 (
http://www.vintageadbrowser.com/computers-and-software-ads-1980s/19)
 that showed something other than an IMSAI 8080.
 Does anyone recognize this old computer (from Reddit)?
 
https://www.reddit.com/r/vintagecomputing/comments/9pc7sx/help_identifying_…
 - John
 
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*Derek Newland* | (828) 234-4731 | derek.newland at 
gmail.com