This article covers MikroTik SXT LTE6キット (2023) SXTR&FG621-EA.

Overview

The MikroTik SXT LTE6 Kit (2023) model SXTR&FG621-EA is an outdoor LTE router with an integrated high-gain antenna. It packs an LTE Cat6 modem, a gigabit Ethernet port with PoE-OUT, and 128MB of RAM, all in a compact weatherproof enclosure. The device also features 802.11be (Wi-Fi 7) wireless capabilities, making it a versatile solution for locations where wired broadband is unavailable or unreliable. This all-in-one unit is designed for outdoor mounting, with IP54-rated protection and easy pole attachment. It runs MikroTik's RouterOS, providing advanced networking features like VPN, firewall, and QoS. Positioned in the mid-to-high prosumer range, it offers a unique combination of LTE connectivity and PoE power delivery that few competitors match.

Connectivity & Compatibility

Wired interface: one 10/100/1000 Mbps Ethernet port with PoE-OUT (802.3af/at, up to ~25W) for powering external devices such as IP cameras or another switch. LTE Cat6 modem with 2×2 MIMO internal antenna, supporting bands 1/3/5/7/8/20/28/38/40/41 and others. Theoretical download speed up to 300 Mbps. Integrated Wi-Fi 7 (802.11be) dual-band (2.4 GHz and 5 GHz) with 2×2 MIMO. Maximum link rate depends on client and environmental conditions. No external antenna ports — you must rely on the internal antenna. This is fine for most outdoor scenarios but limits flexibility in extremely weak signal areas. Compatible with any standard Nano SIM card (full-size SIM slot). No carrier lock. PoE input via included injector (24V 1.2A) or from a PoE switch (802.3af/at). PoE-OUT only works when powered via injector or PoE switch that can supply sufficient power.

Product Info

Released in late 2023, this kit is currently priced around ¥31,633 on Japan. The warranty is one year from the manufacturer. In the box you get the SXT LTE6 unit, a PoE injector (24V 1.2A), mounting hardware, an Ethernet cable, and a quick guide. In the market, it sits in the mid-to-high prosumer tier. Competitors include Ubiquiti's LTE products and carrier-grade 4G routers, but MikroTik stands out with its powerful RouterOS software and the ability to deliver PoE-OUT directly from the unit, enabling simplified outdoor network setups.

Best Use Cases

Remote offices or vacation homes: When fiber or cable is not available, plug in a data SIM and mount the SXT outdoors for instant broadband. The integrated antenna works well even in moderate fringe areas. WAN failover / backup link: Configure the SXT as a secondary WAN gateway. If your primary connection drops, RouterOS can automatically fail over to the LTE link, keeping critical services online. * Temporary event networking: At trade shows, campsites, or construction sites, set up the SXT to provide internet to an entire LAN. Its PoE-OUT port can run a small switch or camera, reducing cabling. This device is not ideal for users who need external antenna support or want a plug-and-play consumer router. It requires networking knowledge to configure properly.

Things to Consider

Regulatory compliance: Verify that the unit has Japan's MIC (技適) certification. The listing does not explicitly state it, so check with the seller before purchase. Using uncertified LTE equipment is illegal in Japan. Wi-Fi range: The built-in Wi-Fi 7 radio is adequate for covering a small office or cabin, but for larger indoor spaces, you'll want to add a dedicated access point connected via Ethernet. PoE-OUT caveat: PoE-OUT is only active when the device is powered by the included injector or a compatible PoE switch that delivers at least 24V. Direct DC power alone won't enable PoE-OUT. Learning curve: RouterOS is powerful but complex. Expect to spend time learning how to configure basic routing, NAT, and firewall rules. Plenty of online resources exist, but there's no out-of-the-box wizard for LTE setups. ## FAQ
Q: Is the SXT LTE6 SIM-unlocked? Which carriers work? A: Yes, it's SIM-unlocked. It works with Docomo, au, SoftBank, and most MVNOs. Check the supported bands: Band 1/3/5/7/8/20/28/38/40/41 cover all major Japanese networks. Q: Can I connect an external antenna for better reception? A: No, the internal antenna is fixed and there are no external antenna connectors. If you need external antennas, consider MikroTik's SXT LTE6 with external antenna option or a different product. Q: How hard is the initial setup? A: If you have experience with MikroTik RouterOS or are comfortable with CLI and networking concepts, you can set it up in under an hour. Beginners should follow the official 'First Time Configuration' guides. There is also an optional Quick Set mode for basic LTE routing, but most features require manual configuration. Q: Does it support 5G? A: No, this model supports only LTE Cat6 (4G). For 5G, look at the MikroTik Chateau 5G series.

Product Disclosure (Amazon)

  • Manufacturer: Mikrotik
  • Seller: EFI Global Store JP
  • Fulfilled by: EFI Global Store JP
  • ASIN: B0CN9GZSJ7
  • Note: This article covers a manufacturer-made product based on Amazon listing details.