Apple 21.5" iMac MHK03LL/A (2017)

Apple 21.5" iMac MHK03LL/A (2017)

Does this
‘Apple 21.5" iMac MHK03LL/A (2017) Apple 21.5" iMac MHK03LL/A (Mid 2017), 1920 x 1080 FHD IPS Display, Intel Core i5 2.3GHz 7th Gen, 8GB DDR4, 256GB PCIe SSD, WIFI, Bluetooth, macOS’

Only have 256GB Storage which is not upgradable?