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Compact black AC adapter with long mains cable

WAWEIS

WAWEIS AC adapter for 3Com P48121000A090G 7900-000-021

SKU CH-DJ8X-CTSDK

Replacement AC adapter for 3Com P48121000A090G and 7900-000-021 with worldwide 100-240 VAC input and 6.5 ft cord

  • Worldwide 100-240 VAC input works across 50/60 Hz mains
  • 5 ft power cord gives flexible placement at wall outlets
  • Multiple safety protections guard against over-current, over-voltage and short circuits
  • FCC, CE and RoHS certifications confirm tested compliance standards
  • 100 % OEM compatible replacement for 3Com P48121000A090G 7900-000-021

Compatible replacement adapter

This WAWEIS AC adapter replaces the 3Com P48121000A090G and 7900-000-021 power supplies. It delivers 100-240 VAC input at 50/60 Hz for worldwide mains use. The unit is sold new and includes a 6.5 ft power cord. Buyers needing a direct substitute for those part numbers will find it suitable.

Check your device and mains

Verify that your equipment matches the 3Com model numbers listed above before ordering. Confirm the local mains voltage falls within the 100-240 VAC range and that the connector fits your device. The adapter carries FCC, CE and RoHS certification for regulatory compliance. No other voltage or connector variants are offered with this item.

Build quality and daily use

The adapter includes over-current, over-voltage, short-circuit and total-power protection circuits. A smart chip provides overheating protection and anti-interference isolation. High-quality wires and strict quality-control testing support reliable operation. The 6.5 ft cord allows flexible placement near a wall outlet.

Highlights

  • Worldwide 100-240 VAC input works across 50/60 Hz mains
  • 5 ft power cord gives flexible placement at wall outlets
  • Multiple safety protections guard against over-current, over-voltage and short circuits
  • FCC, CE and RoHS certifications confirm tested compliance standards
  • 100 % OEM compatible replacement for 3Com P48121000A090G 7900-000-021

Specifications

No published specifications for this item yet.

Questions about this item

Does the 6.5 ft cord include the wall plug or must I buy a mains lead separately?

The 6.5 ft power cord is built in with a wall plug, so no separate mains lead is required.

The title lists 3Com P48121000A090G and 7900-000-021 — are both covered by one adapter?

Yes, the adapter is 100 % compatible with both 3Com part numbers listed.

My wall sockets supply 240 VAC at 50 Hz — will the 100-240 VAC 50/60 Hz input handle that without a converter?

The worldwide 100-240 VAC 50/60 Hz input accepts 240 V at 50 Hz directly, no converter needed.

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