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Four black dual-port USB wall chargers, compact cube shape, matte finish

YTFCYIKBG OFS-755 4-Pack USB Wall Charger Dual Port 5V 2.1A Black

SKU CH-4PQ6-5FQ91

Four black dual-port USB wall chargers deliver 5 V 2.1 A output for charging two devices simultaneously

  • Compatible Phone ManufactureriPhone 13 12 11 Pro Max SE XS XR X 8 7 6 6S Plus, Galaxy, LG
  • Compatible Phone ModeliPhone 13 12 11 Pro Max SE XS XR X 8 7 6 6S Plus, Galaxy, LG
  • ColorBlack
  • AdapterUSB Type A
  • Standard USB Port2
  • Output Volt5 volts
  • Charges two devices at once with dual USB-A ports
  • Delivers stable 5V 2.1A output for reliable power
  • Works with iPhone 14 to 6S Plus and Android phones
  • Built-in overcurrent, overvoltage, overheating and short-circuit protection
  • Compact four-pack design fits pockets and travel bags

4-Pack Dual USB Wall Charger

This four-pack of dual-port USB wall chargers delivers 5V 2.1A output from each port, letting you power two phones, tablets or accessories at once. The 100-240V input range works on mains supplies worldwide, and the black USB-A adapters suit home, office or travel use.

Upgrade from single-port 1A adapters

Replacing older 5V 1A blocks with these 2.1A units cuts charging time roughly in half for phones and small tablets that can accept the higher current. The jump is worth it when you regularly charge two devices together or need the wider 100-240V input for international travel.

Plug-in installation with common pitfalls

Simply insert the cube into any standard wall outlet; no drivers or configuration are required. The main issues arise when users expect fast-charging protocols such as Quick Charge or Power Delivery — this charger supplies only a fixed 5V 2.1A — or when both ports are loaded and a device negotiates a lower current.

Highlights

  • Charges two devices at once with dual USB-A ports
  • Delivers stable 5V 2.1A output for reliable power
  • Works with iPhone 14 to 6S Plus and Android phones
  • Built-in overcurrent, overvoltage, overheating and short-circuit protection
  • Compact four-pack design fits pockets and travel bags

Specifications

BrandYTFCYIKBG
ModelOFS-755
Part Number0FS-755
Compatible Phone ManufactureriPhone 13 12 11 Pro Max SE XS XR X 8 7 6 6S Plus, Galaxy, LG, Moto, Android Phones
Compatible Phone ModeliPhone 13 12 11 Pro Max SE XS XR X 8 7 6 6S Plus, Galaxy, LG, Moto, Android Phones
ColorBlack
AdapterUSB Type A
Standard USB Port2
Output Volt5 volts
Output Amp2.1 amps
Support Volt110 volts

Questions about this item

What type of wall outlet does the OFS-755 plug into?

The OFS-755 plugs directly into a standard AC wall outlet and accepts an input voltage range of 100-240V for worldwide use.

How do I install the OFS-755 and what is the common mistake to avoid?

Insert the charger fully into the outlet until the prongs seat firmly; the common mistake is leaving a gap that causes intermittent contact or overheating.

When should I replace one of the four chargers in the pack?

Replace a unit if the housing shows cracks, the ports feel loose, or devices stop charging at the rated 5V 2.1A output.

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