CCTV & Security

CCTV Coax Cables & Security Camera Extension Assemblies

Security camera systems need coax cables that are the exact right length — too short means the camera won't reach, too long means yards of cable to hide. Custom-built coax with BNC connectors eliminates the hassle.

Quick Pick — Best Cable by Run Length

Not sure what to order? Start here.

RG-174
Under 50 ft RG-174

Thin and flexible for tight conduit runs and internal camera wiring

Build with RG-174 →
RG-58
50 – 200 ft RG-58

Standard BNC cable for most analog camera runs

Build with RG-58 →
LMR-240
200 – 500 ft LMR-240

Low-loss for long camera runs in multi-story buildings

Build with LMR-240 →
RG-316
Outdoor/harsh RG-316

PTFE jacket handles extreme heat near outdoor cameras

Build with RG-316 →

Signal Loss Comparison

dB loss per 100 feet — lower is better. Multiply by your run length and divide by 100.

Cable 5 MHz 10 MHz 100 MHz 450 MHz
RG-174 6.6 6.6 6.6 14.5
RG-58 4.3 4.3 4.3 9.8
RG-316 5.5 5.5 5.5 12.5
RG-142 3.8 3.8 3.8 8.5
LMR-240 2.4 ✓ 2.4 ✓ 2.4 ✓ 5.3 ✓

Values are approximate. ✓ indicates lowest loss for that frequency.

All Recommended Cables

RG-174

RG-174

$0.75/ft
Low loss:

Thin, flexible — for tight conduit and housing runs.

Best for: Internal camera wiring, short patch cables under 50ft

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RG-58

RG-58

$1.00/ft
Low loss:

Standard BNC coax cable for analog and HD-over-coax systems.

Best for: Standard camera runs up to 200ft

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RG-316

RG-316

$0.90/ft
Low loss:

PTFE-insulated for extreme temperatures near outdoor cameras.

Best for: Outdoor cameras, rooftops, high-heat environments

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RG-142

RG-142

$2.35/ft
Low loss:

Double-shielded for EMI-heavy environments near power lines.

Best for: Industrial security, near electrical equipment

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LMR-240

LMR-240

$1.75/ft
Low loss:

Low-loss for long camera runs with minimal signal degradation.

Best for: Long runs 200ft+, multi-story buildings

Build → Shop all →

Popular Builds

Most common connector combinations on rg58. Click to configure length and order.

BNC MALE BNC MALE

BNC to BNC

From $16.28

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BNC MALE BNC FEMALE

BNC Male to Female

From $16.28

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BNC MALE RCA MALE

BNC to RCA

From $15.78

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Frequently Asked Questions

What coax cable is used for CCTV cameras?
Analog CCTV and HD-over-coax systems (HD-TVI, HD-CVI, AHD) use BNC connectors on coax cable. RG-58 handles runs up to 200 feet. For longer runs, LMR-240 reduces signal loss. RG-174 is used for short flexible runs inside housings and conduit.
How far can I run a CCTV coax cable?
Analog cameras typically work up to 300 feet on good coax. HD-over-coax cameras can run up to 1600 feet depending on resolution. With an amplifier, analog runs can extend to 1000 feet or more.
What connector do CCTV cameras use?
CCTV cameras and DVRs use BNC connectors. Most camera pigtails are male BNC, and DVRs have female BNC ports. Extension cables typically have BNC Male on both ends.

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Pick a cable above, choose your connectors, set your exact length. Ships free within the USA.

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