Using quality cables is very important, there are a multitude of low cost and poor quality cables available online. All the Symply SAS cables are certified for use with our products with SAS interfaces, either as connection to your cost computer, or for our unique Thunderbolt3 to SAS expansion solution to connect other SAS dives to the SymplyPRO LTO, SymplyDIT LTO and SymplyPRO LTO rackmount systems.