Infomir MAG 540w3 Review 2026: the simple box for a MAG portal

How logging in with a MAC address works

A MAG box doesn't log in with a username and password, but with its MAC address. It is on the sticker on the box and, at Infomir, starts with 00:1A:79. You give it to your IPTV provider, who activates it on their Stalker or Ministra server and sends you a portal URL. You enter that on the box, and that's it. Infomir doesn't change MAC addresses on request.

Your provider's portal supplies everything: the channel list, the TV guide, the menu and, if the provider supports it, catch-up. How it looks and what works therefore depends on your provider, not on the box. Some shops describe the MAG 540w3 as suitable for Stalker, Xtream and M3U, but Infomir doesn't describe logging in with Xtream Codes. That only works if your provider has a MAG portal for it.

Does your provider run an older Ministra or Stalker portal? Since an update in August 2023 the box can pose as an older MAG 420, 322 or 254 (the ‘Compatible Model’ setting). You load an M3U list via ‘Add IPTV list’ in the IPTV Channels menu, as a link or from USB or NAS. That is a simple player without a full TV guide, though.

Linux or Google TV: MAG 540w3 or MAG 555?

The 540w3 runs Linux 4.9 with Infomir's portal. There is no Play Store and you don't install APKs. That is also the advantage: there are no apps or advertising, the controls are clear and, according to Infomir, the box runs for months without a restart. That suits people who want to keep it simple, such as older relatives.

If you do want apps, Infomir has the MAG 555 with Google TV. It uses the same Amlogic S905Y4-B, but has 2 GB of RAM, 16 GB of storage, Bluetooth 5.0, a voice remote, Google Cast and Widevine. On that you choose your own IPTV app and log in with M3U or Xtream Codes. The MAG 555 also has a 100 Mbit/s network port.

MAG 540w3, 544w3 or 524: the differences

The MAG 544w3, announced in May 2023, has the same internals according to Infomir's own comparison: Amlogic S905Y4-B, 1 GB of RAM, 4 GB of storage, Linux 4.9, dual-band Wi-Fi, a 100 Mbit/s port and two USB 2.0 ports. The difference is the larger casing (115 × 115 × 28 mm, 170 grams) and the programmable MiniFusion remote. It costs a few euros more. The standard MAG 540, without w3, has no Wi-Fi and is slightly cheaper.

The MAG 524 and 524w3 are older Linux boxes with an Amlogic S905X2; Infomir has moved them to its archive. Some sites call the 524 an Android box, but that isn't right. Infomir's Android models were the MAG 500A (Android 9, 2021) and now the MAG 555 with Google TV.

Picture, sound and connections

The box plays 4K via HDMI 2.1, with HEVC (10-bit too) up to 2160p60. Infomir lists 4K HDR, but not which HDR formats; Dolby Vision isn't mentioned anywhere. AV1 is in the product description, but missing from the codec table. Sound goes to your TV or receiver as Dolby Digital Plus up to 7.1; Dolby Atmos isn't mentioned.

The network port manages 100 Mbit/s. That is enough for one 4K stream, which needs about 8 to 25 Mbit/s. The w3 version also has dual-band Wi-Fi (802.11ac, 2x2). With two USB 2.0 ports you play files from a USB stick, and over the network from a NAS too. Bluetooth is missing.

The infrared remote has five programmable buttons that learn your TV's codes, for example for power and volume. With 1 GB of RAM and 4 GB of storage the box is tightly specified, but it doesn't have to run apps. The box is small: 120 × 78 × 21 mm and 110 grams.