Hi,
Pages 28-30.
https://library.netapp.com/ecm/ecm_get_file/ECMM1280392
The type of cables you will need called "QSFP" (ignore the Ethernet connectors on the shelves), but I suggest you to check what you got before you "Investing" more money, the NetApp EULA does not allow the re-sell or transfer of software or the hardware it has been installed on. You will not be able to download up-to-date software, and there's a 50:50 chance that the one currently installed on this old model (if at all installed, and if at all has license installed) is a discontinued OS called 7-mode, which almost not been sold for the last 5 years.