AC/DC Adapter for Lenovo EMC2 PX4-400D PX4-4000 NAS - Reliable

Our review of the AC/DC Adapter for Lenovo EMC2 PX4-400D PX4-4000 finds it is a straightforward, reliable replacement power supply for owners of compatible Lenovo-EMC NAS units. The single biggest reason to buy is safety-oriented construction: SupplySource highlights protection against incorrect voltage, short circuit and internal overheating, which matters when powering a NAS that stores important data. This adapter is brand new, non-OEM, and supports a wide input range, making it a practical spare or emergency replacement for users who need a fast, low-risk swap.

Key Features

• Safety protections: Built-in safeguards against incorrect voltage, short circuit and internal overheating reduce the risk of damage to the NAS and attached drives.
• Wide input range: Accepts 100-240V and 50-60Hz input, so it works across typical regional mains voltages without a separate transformer.
• Brand new, non-OEM quality: Supplied as a new, unused unit so buyers receive a fresh replacement rather than a refurbished part.
• Certifications: CE and FCC certification indicate the adapter meets common regulatory and safety standards for electronic chargers.
• Model compatibility: Specifically listed for Lenovo EMC2 PX4-400D, PX4-4000, PX4400D and the 32064400 / 70CM9001NA identifiers, making it easy to match to the original part.
• Customer support: The seller invites contact for questions or concerns, which helps when confirming tip size or output before buying.

Who It's For

This adapter is aimed at owners of compatible Lenovo-EMC NAS units who need a direct replacement power supply without sourcing the original OEM part. It is also suitable for IT technicians and small business users who maintain NAS devices and want the reassurance of safety features like short-circuit and overheat protection.

It is not targeted at users who need an adapter for unrelated devices or for those who require manufacturer-warranty service tied to an OEM part. Buyers should verify DC output, connector tip size and physical dimensions before purchasing to ensure an exact fit.

Pros & Cons

Pros

• Safety-first design that guards against incorrect voltage, short circuits and overheating.
• Wide 100-240V input makes it usable worldwide without voltage converters.
• New, unused condition offers a dependable replacement option at likely lower cost than OEM.

Cons

• Non-OEM part means it may not carry the original manufacturer warranty or branding.
• Buyers must confirm DC output and tip size themselves, as those specifics are not detailed on the product listing.

Specifications

Brand	SupplySource
Compatible Models	Lenovo EMC2 PX4-400D, PX4-4000, PX4400D
Part Identifiers	32064400, 70CM9001NA
Input Voltage Range	100-240V
Input Frequency	50-60Hz
Condition	Brand New, Non-OEM
Certifications	CE, FCC

Our Verdict

The SupplySource AC/DC adapter is a practical value buy for anyone who needs a dependable replacement for a Lenovo EMC2 PX4-series NAS. It combines safety protections and wide voltage compatibility in a new, non-OEM unit, making it a sensible spare or emergency swap as long as you confirm the DC output and tip fit the device.

Frequently Asked Questions

Will this adapter work worldwide?
Yes; the adapter accepts 100-240V and 50-60Hz, so it is compatible with common mains voltages in most regions.

Is this an OEM Lenovo part?
No; this is a brand new, non-OEM replacement manufactured by SupplySource with safety certifications.

How do I confirm compatibility?
Check your NAS unit or existing adapter for the DC output voltage and connector tip size, and contact the seller if you need help matching those details.