These are cards that fit the 990MT case. If your card is not longer, it will fit.

for example, MSI 1050 dimensions 182 x 69 x 35 mm (MSI GTX 1050 TI 4GT Low Profile Graphic Cards)

Quadro RTX 4000 is 4.4" (H) x 9.5" (L) Single Slot, 241 mm long.

Quadro P2200 measures 201 mm in length, 111 mm in width,

This video cards will work with this system. (1.) Gigabyte GeForce GTX 1650 GDDR6, GV-N1656OC-4GD Video Card https://amzn.to/2Zyg5TN (2.) ZOTAC Gaming GeForce GTX 1650 OC 4GB GDDR6 https://amzn.to/32peeSW (3.) Gigabyte Geforce GTX 1050 Ti OC Low Profile 4GB GDDR5 (GV-N105TOC-4GL) https://amzn.to/2XEqKMb (4.) MSI Gaming GeForce GTX 1650 4GB GDRR5 Low Profile (GTX 1650 4GT LP OC) https://amzn.to/2VkDdSd (5.) MSI GTX 1050 TI 4GT Low Profile Graphic Cards https://amzn.to/34r0AxG (6.) Gigabyte GeForce GT 1030 GV-N1030D5-2GL Low Profile 2G Computer Graphics Card https://amzn.to/2Xu3SyO (7.) ZOTAC GeForce GT 1030 2GB GDDR5 64-bit Low Profile Video Card ZT-P10300A-10L https://amzn.to/3eayL1b (8.) ZOTAC Gaming GeForce GTX 1650 OC 4GB GDDR5 https://amzn.to/2V28laj (9.) ASUS GeForce GTX 1650 Super 4GB Phoenix Fan Edition (PH-GTX1650S-O4G) https://amzn.to/3eoad4S (10.) MSI Graphic Cards GT 1030 2GB GDDR5, Low Profile https://amzn.to/390Spum

It looks like the card itself might fit since the Maximum width for a matx motherboard is 244mm and the asus board is 234mm wide. The dell board is wider than the asus board since there's a couple of screws the motherboard can't reach so the dell board was closer to spec plus I'd say about 5-10mm extra between the dell mobo and the drive cage. The card itself MIGHT fit but the cables that come out the front might make it impossible to fit a 4000 in there. Do you know if the length is measured from the little tab or is it measured from the I/O panel itself? 

Standard measurement of video card dimension:

LENGTH: Measured from the inside of the rear bracket to the furthest point. Rear connectors which extend outward (DVI, VGA) do not appear to be factored into the measurement.