What is the NEC H3040A?
The NEC H3040A is a DC-DC power converter, listed by the manufacturer as "DC-DC CONV". It is part of Circular Telecom's surplus and refurbished telecom/IT equipment inventory.
CircularTelecomParts Catalogue

Part Overview
Manufactured by NEC, the H3040A (DC-DC CONV) is a DC-DC power converter. Circular Telecom sources, tests, and resells surplus and refurbished NEC equipment like this as part of a lower-carbon alternative to new procurement.
Common Questions
The NEC H3040A is a DC-DC power converter, listed by the manufacturer as "DC-DC CONV". It is part of Circular Telecom's surplus and refurbished telecom/IT equipment inventory.
Circular Telecom sources and resells surplus and refurbished NEC network equipment, including parts such as the H3040A, subject to current availability. Contact Circular Telecom for a live quote.
Circular Telecom Catalogue