SKU: 91801939002

Xiaomi Mi Router 4A AC1200 Dual-Band WiFi Router

Sale price$285.92 Regular price$317.69
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Ships within 48 hours · Estimated delivery Jul 30 - Aug 4

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Description

Xiaomi Mi Router 4A AC1200 Dual-Band WiFi RouterThe Xiaomi Mi 4A Dual Band Wireless Router allows you to reach 300Mbps over the 2. 4GHz band and 867Mbps over the crystal clear 5GHz band, the max wireless speed is up to 1167Mbps over both. The 2. 4GHz band offers transmission over greater distances, with better coverage and better penetration through walls, while the 5GHz band adopts 802. 11ac technology giving you less interference and higher speeds for a smoother experience watching HD videos and

The Xiaomi Mi 4A Dual Band Wireless Router allows you to reach 300Mbps over the 2.4GHz band and 867Mbps over the crystal clear 5GHz band, the max wireless speed is up to 1167Mbps over both. The 2.4GHz band offers transmission over greater distances, with better coverage and better penetration through walls, while the 5GHz band adopts 802.11ac technology giving you less interference and higher speeds for a smoother experience watching HD videos and playing multiplayer online games.

The Mi Router 4A supports Smart Connect, offering 2.4GHz and 5GHz bands under one Wi-Fi name. This allows you to have no more confusion over which Wi-Fi network to connect to 2.4GHz and offers better performance through walls, while 5GHz provides higher speeds. The optimal frequency band is also automatically selected by a dual-band terminal.

The router comes with 4 external antennas so that the signal can travel through walls better. 4 external omnidirectional antennas, which are precision tested, and with a carefully designed internal structure and configuration greatly improves transmission performance, even in complex environments. It also features dual cooling fin heat sinks for better system stability and cooling. A specially treated metal substrate is combined with nanomaterials boasting exceptional thermal radiation features. It offers both excellent heat absorption and heat dissipation capabilities to effectively lower the chip temperature and provide improved system stability.

FEATURES:

4 external antennas
Dual-band wireless network
64 MB memory for stable operation
Control remotely via the app
Unauthorized access prevention
Parental control

SPECIFICATIONS:

Processor MT7628DA
Internal memory 64MB
2.4G Wi-Fi 2x2 (supports the IEEE 802.11n protocol, maximum possible speed of 300Mbp
5G Wi-Fi 2x2 (supports the IEEE 802.11ac protocol, maximum possible speed of 867Mbps)
Product antennas 4 external omnidirectional antennas (two 2.4GHz antennas with a maximum gain of 5dBi; two 5GHz antennas with a maximum gain of 6dBi)
Product heat dissipation Natural heat dissipation
Total interfaces Two 10/100M self-adaptive LAN ports (Auto MDI/MDIX), One 10/100M self-adaptive WAN port (Auto MDI/MDIX)
LED indicator lights 2
System reset buttons 1
Power input interface 1
Protocol standards IEEE 802.11a/b/g/n/ac, IEEE 802.3/3u
Certification standards GB9254-2008, YD/T993-1998, GB4943.1-2011
Dual band 2.4GHz and 5GHz
Modulation 11b: DSSS: DBPSK (1Mbps), DQPSK (2Mbps), CCK (5.5/11Mbps), 11a/g: OFDM: BPSK (6/9Mbps), QPSK (12/18Mbps), 16QAM (24/36Mbps), 64QAM (48/54Mbps), 11n: MIMO-OFDM: BPSK,
QPSK, 16QAM, 64QAM. Rate set MCS0 to MCS15, 11ac: MIMO-OFDM: BPSK, QPSK, 16QAM, 64QAM, 256QAM. Rate set: MCS0 to MCS9 (supports 2 streams)
Operating system Mi Wi-Fi ROM intelligent router operating system based on a highly customized version of OpenWRT
Wireless security WPA-PSK/WPA-PSK2 encryption, wireless access control (blacklist and whitelist), SSID hiding, smart unauthorized access prevention
Management application Supports web, iOS, and Android
Dimensions 18.8 x 10 x 17.5 cm

WHAT'S IN THE BOX:

  • Xiaomi Mi 4A Dual Band Wireless Router - White x1
  • 12V Power Adapter x1
  • User Manual x1
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 91801939002

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4.1 ★★★★★
Based on 6 reviews
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Verified Purchase
Donna
Omaha, US
★★★★★ 5
These worked for me!
Color: Original Grey
They worked great. I bought these for cracked sore heels. It took 2-3 weeks but my heels no longer hurt and the cracks have closed and look more like an indention than a crack now. They feel so much better, but I'll probably wear them another week just to be sure they stay healed. They look and feel like regular socks from the outside but only cover the heel with the toe open. Not think but not thick, again like regular socks. They would probably be slippery on a smooth surface the same as socks. The inside feels like rubber or something smooth at the heel. I have washed them once each pair and accidentally dried one pair in the dryer. They still seem to feel the same so I think they're fine. They're pretty inexpensive and had different colors and sizes.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 10, 2026
M
Verified Purchase
Mimi
Houston, US
★★★★★ 4
Truly Helped My Cracked Heels
Color: Original Grey
I didn't include a photo cause they look exactly like their advertisement photo. I so liked the silicon-type heel lining as it kept the heel-repair cream on my heel and did not get soaked up by the sock. But, it is so, so slippery when walking around in them! Take care to be mindful when you set each foot down as the lotion can slide your heel across the sock quite a bit. If these socks were for an elderly person, I would have them only sit while using the sock - no walking around for fear of falling. I have larger ankles and found that having both the top and the bottom hems/elastic, etc. the same size to be quite troublesome and was not a nice feeling or fit on my upper hem that hit my ankle. Don't get me wrong, I am so glad that I got them and I continue to use them and they are helping my horribly-cracked heels greatly, but I find that I have to keep moving the top hem up and down so that it doesn't stay in one position as it cuts in to my ankle. My feedback and advice might be to please make the upper hem somewhat larger than the one that is on the bottom and goes over my actual foot. They really should not be the same circumference...or else make different sizes - S, M, L, etc. That's really my only complaint or "con" to ordering these. I think they are a great concept and I like the fact that I can throw them in the washer and dryer.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 8, 2024
S
Verified Purchase
SC6218
Carnegie, US
★★★★★ 5
Actually works, and really well
Color: Original Grey
I bought these because I got them on a great deal and was quite skeptical, but they actually worked exactly as advertised and I saw a huge difference after the first night! I understand why they don’t cover the whole foot like a regular sock (it would be stifling), but it would be incredible if they made a pair that go forward enough to cover the ball of the foot. One pair lasted about 3 weeks before the moisturizer wore out (I did notice a dropoff after washing, so for best results put them on when you’re clean and just for overnight, so you can avoid washing). Apologies for no photos- no one wants to see the before photos. These work so well I’ve just come back to order more even though I’m now paying full price. Definitely, definitely recommend.
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Reviewed in the United States on May 28, 2026
L
Verified Purchase
Liana
Phoenix, US
★★★★★ 5
Comfortably and works
Color: Original Grey
❤️ I used these with magnesium lotion on my heals for 3 nights, soaked my feet every morning and cracked heals are gone!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 25, 2026
T
Verified Purchase
T. U.
Belleville, US
★★★★★ 5
A game changer for deep heel cracks and psoriasis!
Color: Original Grey, Color: Original Grey
If you have deep cracks or psoriasis on your heels, get these they are a total game changer! They hold in Vaseline and topical meds perfectly while I sleep, providing much needed relief without getting all over my sheets. My heels are healing faster and my callouses are softer and don’t split open because the moisture is trapped against the skin all night with the built in gel cushion lining instead of rubbing off. So much hydration. The fact that it is a 2 pack is perfect because while one pair is being washed and drying, you still have a set to wear. Very soft, stretchy, breathable, and easy to sleep in. I highly recommend them!
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Reviewed in the United States on January 31, 2026

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