3COM 7900-000-018-1.00 Power Supply P48121000A040G 120VAC 12VDC 21W 60HZ

( Brand: 3com ), ( Type: Power Supply ), ( Unit Type: Unit ), ( Country Of Origin: China ), ( EAN: 7900000018100 )

Review 3COM Class Power Supply 120vac 12vdc 21w 60hz

The 3Com 7900-000-018-1.00 power supply, specifically model P48121000A040G, is a versatile and reliable solution for powering various telecommunications and networking equipment. This power supply operates on both 120 volt AC input and converts it into a stable 12 volt DC output, delivering a maximum power of 21 watts.

Measuring at 3.0 inches (H) x 5.9 inches (W) x 2.2 inches (D), this power supply is compact enough to fit into most telecom racks and equipment cabinets. Its robust design ensures reliable operation even in harsh environments, making it an excellent choice for use in telecommunications, data centers, and other critical infrastructure applications.

The power supply features a universal input voltage range of 90-264VAC, allowing it to be used in various regions around the world. It also comes with a built-in overvoltage protection circuit, which safeguards the equipment from potential power surges and ensures stable power delivery.

The 3Com P48121000A040G power supply is also designed with efficiency in mind, meeting the Energy Star Level V efficiency requirements. This means that it consumes less power when not in use, reducing energy waste and saving you money on your electricity bill.

Additionally, the power supply comes with a number of safety features, including short-circuit protection, over-current protection, and over-temperature protection. These features help prevent damage to the equipment and ensure the safety of the users.

Installation of the power supply is straightforward and can be done using the included mounting brackets. The power supply also comes with a detachable IEC power cord for easy connection to the power source.

In summary, the 3Com 7900-000-018-1.00 power supply with model number P48121000A040G is a high-performance, reliable, and efficient power solution for telecommunications and networking equipment. Its universal input voltage range, built-in safety features, and compact size make it an excellent choice for use in various applications where stable and reliable power is a must.

The 3Com 7900-000-018-1.00 power supply, model number P48121000A040G, is a 120VAC input, 12VDC output power supply with a power rating of 21W and 60Hz frequency. Here are some potential pros and cons of purchasing this power supply:

1. Reliable Brand: 3Com is a reputable brand known for manufacturing high-quality networking equipment, and this power supply is a testament to their engineering capabilities.

2. Efficient: With a power rating of 21W, this power supply is efficient in delivering power to the devices it is designed to support.

3. Wide Input Voltage Range: The power supply can accept an input voltage range of 100-240VAC, making it suitable for use in various regions and power grids.

4. Rugged Design: The power supply is designed to withstand harsh environments, making it ideal for use in industrial or telecommunications applications.

1. Limited Output Voltages: This power supply is designed to output a fixed voltage of 12VDC, which may not be suitable for devices that require a different voltage.

2. Lack of Protection Circuitry: The power supply does not come with advanced protection features such as overvoltage, undervoltage, or overcurrent protection.

3. Limited Availability: Due to its age and the fact that it is a legacy component, this power supply may be difficult to find in the market, and replacement parts might be hard to come by.

The 3Com 7900-000-018-1.00 power supply is a reliable and efficient option for providing power to devices that require a 12VDC input voltage. Its rugged design makes it suitable for use in industrial or telecommunications applications. However, its limited output voltages and lack of advanced protection circuitry may be a concern for some users. Additionally, due to its age and limited availability, it might be challenging to obtain replacement parts or find similar alternatives in the market.

If you require a power supply with a 12VDC output and are confident that the device you are powering does not require any advanced voltage or protection features, then the 3Com 7900-000-018-1.00 power supply could be an excellent choice. However, if you need a power supply with a different output voltage or advanced protection features, it might be worth considering more modern alternatives from reputable manufacturers.

Details:

This listing is for the part number shown above only. 3COM 7900-000-018-1.00 Class 2 Power Supply P48121000A040G 120VAC 12VDC 21W 60Hz Part Number / MPN: Brand: 3Com condition: Used Stock photo may be used.

part #: 7900000018100 prices

• $24.99-$78.41

specifications powsuppy:

• brand: 3com
• type: Power Supply
• unit type: Unit
• country of origin: China
• ean: 7900000018100

shipping powsuppy:

• class: Economy, Standard, Expedited, One-day
• cost: $0.00
• type: Fixed
• service: Economy, Standard, Expedited, Overnight
• transit: 2-5 Days

seller powsuppy:

• # reviews: 3813
• rating: 99.6%
• city: Palatine, IL

returns powsuppy:

• policy: Returns Accepted
• paid by: Buyer
• time: 30 Days
• method: Money back

offer powsuppy:

• availability: In Stock
• sold: 0
• options: Ship-to-home
• quantity: 3
• started: May 28, 2026

payments powsuppy:

• credit card: Diners-club
• wallet: Google-pay
• other

general powsuppy:

• condition: Used
• Computers/Tablet's Networking > Computer Components Parts > Power Supplies

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