Marketplace
P20TECH
CyberPower 8 Way Outlet Surge Protector Power Board $30.40 or $30.10 after Cashrewards cashback.
Officeworks currently selling it for $59.
Alternatively, check if you are amongst the lucky ones being targeted to get a $10 of $20+ spent at eBay, which could potentially reduce it to $28/$27.72.
"More than 98% sold" at time of posting.
I don't believe you can stack codes, so it'll be $28 with the targeted deal