📦 Item Description

Cisco OEM Power Supply – Astec AA21430
Cisco Part Number: 34-1609-02 (Rev C0)
Maximum Output: 50 Watts

This listing is for a genuine Cisco OEM internal power supply, manufactured by Astec, model AA21430. This unit was originally designed for use in select Cisco Integrated Services Routers, most commonly the Cisco 1841, and is not an aftermarket or generic replacement.

⚙️ Electrical Specifications

• Input:
  100–240VAC, 50/60Hz (auto-switching)

• Outputs:

  • +5V @ 9.5A (primary rail)

  • +12V @ 1.2A

  • −12V @ 0.5A

• Total Output Power: 50W

This power supply is optimized for logic-heavy networking equipment and includes the −12V rail required for serial/console circuitry found in Cisco routers.

🔌 Compatibility

Designed for internal installation in compatible Cisco router chassis, including:

• Cisco 1841 Router (primary application)

• Cisco 1760 Router

• Select Cisco 1700 / 1800 Series models
  (Compatibility depends on chassis and revision — please verify your model before purchasing.)

⚠️ Important:
This is NOT an ATX or PC power supply. Although the connector may resemble PC-style plugs, the pinout is Cisco-specific and should not be connected to a computer motherboard.

🧰 Condition

• Used – Very Good

• Clean, straight housing.

• Original connector and wiring intact (no cuts or splices)

• No visible corrosion or burn marks.

• Removed from professional networking equipment.

Photos shown are of the actual item you will receive.

🔁 Additional Notes

• Enterprise power supplies may require a minimum load on the +5V rail for proper regulation.

• Ideal as a direct replacement, spare, or for lab / bench testing by qualified users.

• Includes integrated IEC power inlet and rocker switch.

📦 What’s Included

• (1) Cisco OEM Astec AA21430 Power Supply
  (No router or additional accessories included.)

🚚 Shipping & Handling

• Ships securely packed w Tracking # provided thru .

• Fast handling - Item/s will ship out within 24 hours of cleared payment.

• Please look at the photos as they are part of the description.

• All Sales are Final.