Here's a single slot low profile GTX 750 Ti https://m.newegg.com/Product/index?itemnumber=N82E16814127836&nm_mc=KNC-GoogleAdwords-Mobile&cm_mmc=KNC-GoogleAdwords-Mobile-_-pla-_-Video+Card+-+Nvidia-_-N82E16814127836&gclid=CKCIjtmN1M4CFQKMaQod8kgOXg&gclsrc=aw.ds