RG59/U Siamese Cable CCTV Video Wire 20-Gauge + 18/2 Power - 500ft

In this review of the RG59/U Siamese Cable from SATMAXIMUM the bottom line is clear: this 500ft combo cable is built for anyone installing or upgrading CCTV systems who needs reliable video and inline power in one run. The reviewer found the cable maintains strong signal integrity over common run lengths thanks to the RG59 coax construction and 95% shielding, while the paired 18/2 power conductors simplify installations by removing the need to run a separate power line. If you want a weatherproof, easy-to-pull solution for cameras, recorders, or satellite connections, this cable addresses the basics well.

Key Features

• High Signal Integrity: The RG59 coax is designed to minimize signal loss so video feeds remain clear and stable over typical surveillance runs.
• 95% Shielding: Heavy shielding reduces interference and helps preserve audio and video clarity in electrically noisy environments.
• Siamese Design: Integrated 20-gauge video and 18/2 power conductors let you run power and video in the same conduit or raceway for cleaner installs.
• Weatherproof Construction: The outer jacket and materials are suited for both indoor and outdoor use, resisting the elements for long-term deployments.
• 500ft Pull Box: The long spool and flexible jacket make routing through walls, ceilings, or conduit easier for single-camera or multi-camera setups.
• Broad Compatibility: Works with CCTV cameras, DVR systems, satellite receivers and antennas, offering flexible connectivity for security and A/V systems.

Who It's For

This cable is best for homeowners, installers, and small business owners wiring CCTV systems who want a tidy, single-run solution that supplies both video and power. It is especially useful when running multiple cameras where 500ft spools reduce the need for joins.

Those needing ultra-long runs beyond typical home or small-commercial distances, specialty low-loss coax for broadcast-level tasks, or integrated connectors pre-terminated should look elsewhere; this product is a practical, economical choice rather than a high-end broadcast cable or a factory-terminated assembly.

Pros & Cons

Pros

• Combines RG59 video and 18/2 power conductors for a neater single-run installation.
• 95% shielding helps protect video quality from electromagnetic interference.
• Durable jacket and weatherproofing make it suitable for both indoor and outdoor use.
• 500ft length reduces the need to splice cable for multiple camera sites.

Cons

• RG59 is not the lowest-loss coax for very long-distance or high-bandwidth broadcast runs.
• Ships as bulk cable in a pull box, so connectors must be terminated separately for camera connections.

Specifications

Product Type	RG59/U Siamese Cable with 18/2 Power
Length	500ft
Video Conductor	20-gauge RG59 coax
Power Conductors	18/2 AWG
Shielding	95% braided shield
Color	Black
Environment	Indoor / Outdoor weatherproof jacket

Our Verdict

The RG59/U Siamese Cable is a practical, cost-effective choice for most residential and small-commercial CCTV installs thanks to its combination of coax and 18/2 power, solid shielding, and weatherproof jacket. Installers who need a tidy single-run solution with dependable video clarity and inline power will find strong value here, though those requiring factory terminations or ultra-low-loss coax for very long runs should evaluate alternatives.

Frequently Asked Questions

Can this cable be used outdoors?
Yes, the outer jacket and construction are described as weatherproof and suitable for both indoor and outdoor installations.

Will I need connectors?
Yes, the cable is supplied in bulk; BNC and power connectors must be terminated or installed separately at cameras and recorders.

Is this cable compatible with DVR cameras?
Yes, the RG59 coax and 18/2 power conductors are compatible with most CCTV cameras, DVR systems, satellite receivers, and antennas.