I had a Killy Klip Newlife Accelerator (?) in my FatMac, It had additional memory SIMM Slots and a DB-9 connector for a TTL Monitor. But,to my knowledge, they never got the software figured out to run the second display before they went belly up. There was probably an undiscovered design defect on my card when it was released, considering the existence of the SE Video Card.
The TekServe tech told me the (EE) owners had said it was a "very interesting card." I hadn't become friends with them as yet, David was on the board of NYMUG serving as treasurer and I was just a noob in that organization at the time.
Newlife cards are probably not worth much on eBay because almost nobody knows anything about them, as opposed to the products of other accelerator/video card mfrs, not to mention the fact that TTL monitors are a bit hard to come by ATM. Try to find one and hook it up to your DB-9!
edit: Interesting SE Card in that auction, it appears to have the same function as the Video Portion of the card I had. I'll have a look around, I'm pretty sure I still have the manual and driver diskette for my card. IIRC it had SCSI implemented on the card as well.
The appropriate cable would seem to be an offshoot (?) of the the unrealized (?) video function of my Newlife FatMac Card. The SE version wouldn't need the SIMM Slots, as the SE has all four banks implemented on the MoBo, whereas the 128k and 512k probably (I'll look it up later) didn't. The SE didn't need the SCSI portion of my card for the similar reason.
This was back in the era of the Hackintosh and I was not yet comfortable with the notion of opening up a Mac case. I'd ordered a MoBo from Shreve Systems and soldered the standard socket to the Killy Klip resistant CPU package and took the card & FatMac to Tekserve for installation. They threw some SIMMs into the deal at no additional charge and I wound up with a 2.5 MB FatMac, IIRC.