Monoprice
Monoprice 135065 Heavy Duty Locking Extension Cord 10ft
★★★★★
Ensure Secure Power Connections with the Monoprice Heavy Duty Extension Cord The Monoprice Heavy Duty Extension Cord provides a reliable and secure power connection for your devices. Featuring locking connectors and a durable design, this extension cord is ideal for demanding environments. Speci...
$31.78*
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*Price sourced from Amazon.com. Last updated:Jul 15, 2026.Price and availability are subject to change.
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Overview
Ensure Secure Power Connections with the Monoprice Heavy Duty Extension Cord
The Monoprice Heavy Duty Extension Cord provides a reliable and secure power connection for your devices. Featuring locking connectors and a durable design, this extension cord is ideal for demanding environments.
Specifications:
- Connectors: NEMA L5-20P to NEMA L5-20R
- Length: 10 Feet
- Gauge: 12AWG
- Amperage: 20A
- Voltage: 125V
- Type: SJT
- Color: Black
Key Features
Nema L5-20P to NEMA L5-20R
This Monoprice heavy-duty extension cord connects your computer or other device with a NEMA 5-20P plug to a NEMA L5-20R outlet.
Buy with confidence: with Monoprice Lifetime Warranty on all cables, you can rest assured we stand behind our products and our customers
Quality at a fair price: Monoprice rugged design and rigid quality control standards deliver high quality products at fair prices.
Service & Support: you're never on your own with Monoprice products! We have a full team of friendly and knowledgeable technicians available to answer your questions
Specifications
Length
10ft
Plug Type
NEMA L5-20P
Receptacle Type
NEMA L5-20R
Feature
Heavy Duty, Locking
Warranty
Lifetime Warranty (on all cables)
Pros & Cons
👍 Pros
- This Monoprice extension cord features NEMA L5-20P to NEMA L5-20R connections, specifically designed for locking twist-lock compatibility.
- The heavy-duty construction of this 10ft extension cord ensures durability and reliable performance for demanding applications.
- It comes with a Monoprice Lifetime Warranty on all cables, providing confidence in its long-term reliability.
- Monoprice emphasizes rugged design and rigid quality control standards, aiming to deliver high-quality products.
- Customer service and support from Monoprice are available, offering assistance with questions or issues.
👎 Cons
- The specific NEMA L5-20P to NEMA L5-20R configuration means it is only compatible with specific twist-lock outlets and plugs, limiting its general use.
- As a 10ft cord, it might not be long enough for applications requiring extensive reach from the power source.
- The product does not specify the gauge of the wire, which is a critical detail for understanding its current carrying capacity and safety.
- While heavy-duty, details on its weather resistance or suitability for outdoor environments are not provided.
- The locking mechanism, while secure, might require more effort to connect and disconnect compared to standard plugs.
Frequently Asked Questions
What type of plugs and receptacles does this Monoprice extension cord have?
This Monoprice heavy-duty extension cord features a NEMA L5-20P plug on one end and a NEMA L5-20R locking receptacle on the other.
What is the length of this extension cord?
This Monoprice heavy-duty locking extension cord has a length of 10 feet, providing moderate reach for power connections.
What kind of warranty does Monoprice offer for this cable?
Monoprice offers a Lifetime Warranty on all its cables, which covers this heavy-duty locking extension cord.
Is this extension cord designed for regular household outlets?
No, this extension cord is designed for NEMA L5-20R outlets, which are twist-lock type receptacles, commonly found in commercial or industrial settings, not standard household outlets.
How does the "locking" feature benefit this extension cord?
The locking feature ensures a secure connection between the plug and the outlet, preventing accidental disconnections in demanding environments.
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