We’re always on the hunt for great tech bargains, and Kmart’s popped up on today’s radar with an Optus 4G mobile broadband Wi-Fi device for $20.

The deal, which can be either purchased online through the Kmart website or your local store, is for an Optus-branded Alcatel Link Zone MW41CL 4G Wi-Fi device and comes with 4GB data for 28 days.

Want to sweeten that deal? Optus is also offering an extra 10GB on the first $30 recharge made before 31st of March for all new customers, so you can get 19GB of data and that broadband for $50 ($20 purchase + $30 recharge), making the deal quite attractive.

The Alcatel Link Zone MW41CL supports 3G 850MHz and 4G 850MHz networks, meaning if you want to unlock the device (which can be done for an extra fee through Optus) it will work with other carriers’ networks too. The Link Zone MW41CL can connect up to 15 devices at any one time.

It’s certainly a bargain, especially if you’re in the market for a cheap 4G Wi-Fi modem, or some cheap Optus 4G data.

If you’re sold on the deal, head to your local Kmart store or website – it’s $20, but it’s unclear how long the deal will be available.

Source: Kmart.