Went into my local auspost shop to look for the Vodafone 4G modem from this deal:
https://www.ozbargain.com.au/node/563202
and came out with the same modem (Huawei E5577) from Optus for the same price.
Specs: https://consumer.huawei.com/ie/routers/e5577/specs/
Deal not as sweet as the Vodafone one because:
- Modem is locked (confirmed with sim-swap)
- No included data
I'm in NSW. Postcode: 22xx
Edit
Some have found success unlocking the device for free via Optus chat:
See: https://www.ozbargain.com.au/comment/9274759/redir
Optus 4G service is absolutely unusable. I was getting 0.2-20 Mbps, yes 0.2 megabits. I was unable to even load a search engine at times. Tried to switch the band too, which helped a bit, but it still fluctuated heavily. Cancelled after a month.