This is a Hasselblad-made lens that sports a Hasselblad X mount. The lens has a maximum ƒ/2.5 aperture and a minimum ƒ/32.
WEX Photo Video
Hasselblad 90mm f2.5 II XCD Lens
Clifton Cameras
Hasselblad XCD 90mm f2.5 II Lens
Scan
Hasselblad XCD 2.5/90V Lens