D821 WiFi Smart Power Strip Extension Board


3 Universal Socket + 2 Type-C +2 USB A | ETL Certified | Energy Monitoring | Control with Smart Life APP | Remote Control | Compatible with Alexa Echo, Google Assistant & Google Home| No Hub Required

₹ 2,499.00 ₹ 5,499.00 Save ₹ 3,000

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Free Shipping on Prepaid Orders

Same day dispatch, if ordered before 2:00 PM. Info Order Placed before 2:00 PM will be shipped within 24 hrs. (Except Sunday and Holidays)

Cash on Delivery Available Info Cash on delivery applicable for order under ₹ 15000

Piggy icon EXTRA SAVINGS & Rewards

Earn upto 5% of order value

With GST invoice, save up to 28% on business purchases


10 Days Replacement Policy for Manufacturing defects. Info All products are covered by 10 Day Replacement Guarantee. This product is eligible for a free replacement, in case you receive a damaged, defective or different item. Please keep the product in its original condition with all accessories & packaging for a successful return. We may contact you to assess the damage or defect before issuing a replacement. Accessories like cables and eartips are not backed up the manufacturer's warranty.

Please note that physical damage cases need to be brought to our notice within 24 hours.

Simply Contact us through the chat window if you find any issues with your order.


1 Year Manufacturer's Warranty


7 SMART OUTLETS: Independently 3 smart Universal outlets, and charge 4 devices with built-in USB ports (2 USB A + 2 Type C); Ideal for controlling electronics in your home, home office, or small business.

SURGE PROTECTION: ETL-certified surge protection shields sensitive electronics and appliances from sudden power surges that can occur during weather storms and cause irreparable damage.

ENERGY MONITORING: Monitor how much energy devices connected to the power strip consume; Check on each one from your smart Life app and turn off ones that are using too much power.

CONTROL FROM ANYWHERE: Control connected devices from anywhere with the Smart Life app. Power up your office remotely and even your holiday lights from the app.

VOICE CONTROL: Remotely control your smart plug and use voice commands with Alexa, Google Assistant.

  • In big offices and houses, people often face the problem of a dozen appliances they need to connect and only a few available power outlets to do that.
  • Even the smallest spike can do harm to sensitive electronics and lead to the complete loss of important data stored on hard disks and other devices.
  • However, you wouldn’t need to worry about these issues using the Concept Kart Surge protector/ Extension cord. You can be sure of proper and reliable power supply and protection of all your electronics from occasional power spikes and voltage fluctuations.


Brand Name: Concept kart

Model Name: D821

Product Name: Smart Power Strip

Output Quantity: 3 AC plugs + 4 USB ports 5V, 3.1A (maximum) USB: 5V2.4A without TYPE-C protocol: 5V3.0A Wireless LAN: 2.4GHz only

Cable length: 1.80m

Material: Fireproof ABS+ PC VO fireproof material

Rated Voltage: 90-250V

Main’s Frequency: 50-60 HZ

Rated Current: 13A-16A

Rated Power: 3250W-4000W

Remote Control App: Smart Life App

Support: iOS from 8.0/Android from 4.1

Implementation Standards: VDE/TuV-Mark/TuV-GS CE

Size:320 * 60 * 45mm


Package Content:

 1* Wifi Smart Power Strip

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Don't worry, D821 WiFi Smart Power Strip Extension Board comes with a 1 Year warranty against manufacturing defects. We guarantee that every product on Concept Kart is genuine and backed by the Manufacturer's warranty.

Read more about Concept Kart's warranty policy.

Shipping Policy


We usually ship orders on same day if ordered before 2 pm or within 24 hours if ordered later (except on holidays/sunday, where processing times may be higher) from one of our domestic warehouses based out of Delhi. It normally takes around 1 to 5 business days for delivery. We use premium service partners such as Blue dart, DTDC and Delivery for faster and reliable service. A tracking number will be provided upon shipment.

In very rare cases when order is not received after 10 business days of shipment (extended by number of days when the govt. Restricts movement of goods due to factors such as coronavirus pandemic), please contact us and we will provide you a support.

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Customer Reviews

Based on 2 reviews
Gautham Gauti (Chennai, IN)

Bit pricey but really useful for work from home and other stuffs

Ravi A (Bengaluru, IN)

D821 WiFi Smart Power Strip Extension Board