OBD II 16 Pin Splitter Extension Cable - Dual Female Port

In this review of the OBD II 16 Pin Splitter Extension Cable the bottom line is simple: this is a basic, durable way to add a second OBDII port or extend access to an existing port without risking wear to a scan tool. It is aimed at technicians, fleet managers, and vehicle owners who need a reliable passthrough for all 16 pins and a low profile connection. The most compelling reason to buy is that it passes all 16 pins straight through with no shared ground wires, preserving signal integrity for diagnostics and GPS tracking devices.

Key Features

• Full 16-pin passthrough: Ensures every diagnostic pin is carried directly so scan tools and trackers receive complete signals.
• No shared ground wires: Prevents ground-related interference and maintains proper electrical separation for connected devices.
• Ultra flat low profile: Lays close to the vehicle dash for discreet installation and reduces strain on the connector.
• Flexible, durable build: High-quality materials give the cable the flexibility needed for tight spaces and repeated handling.
• Protects scan tool connectors: Using the extension reduces wear and tear on the tool's OBD connector when devices are swapped frequently.
• Simple packaging: No logo or excess packaging makes it convenient for bulk or fleet purchases.

Who It's For

This splitter is a good fit for mechanics and DIYers who frequently plug in different diagnostic devices, and for vehicle owners who want to add a discreet GPS tracker while keeping an uninterrupted port for a scanner. The dual female setup makes adding a second permanently connected device straightforward.

Those who need a very long extension or a model with locking clips should look elsewhere; this product is a 2 ft (60 cm) extension intended for convenience and reduced connector wear rather than heavy-duty, long-reach installations.

Pros & Cons

Pros

• Passes all 16 pins straight through, so diagnostic tools and trackers function without missing signals.
• No shared ground wires reduces the chance of interference when multiple devices are connected.
• Flat, low profile design and flexible cable make it easy to route and conceal under the dash.
• Good value for adding a second OBDII port or protecting an expensive scan tool connector.

Cons

• Length is 2 ft (60 cm) which is convenient for nearby routing but may be short for some installations.
• Plain packaging and no branding on the cable may feel generic to users expecting retail presentation.

Specifications

Product type	OBD II 16 Pin Splitter Extension Cable
Connector arrangement	1x Male to 2x Female
Pin support	Passes all 16 pins straight through
Shared ground	No shared ground wires
Length	2 ft (60 cm)
Profile	Ultra flat low profile
Packaging	NO Logo & Simple Packaging

Our Verdict

The OBD II 16 Pin Splitter Extension Cable is a practical, low-cost solution for anyone who needs an extra OBDII port or wants to protect a scanner's connector. It delivers reliable passthrough of all pins and avoids shared ground wiring, making it a sensible choice for GPS trackers and diagnostic tools. For its price and durable construction it represents solid value for technicians and vehicle owners who do routine diagnostics.

Frequently Asked Questions

Will this cable support GPS trackers and scanners at the same time?
Yes. It passes all 16 pins straight through and has no shared ground wires, so trackers and scan tools can operate concurrently.

How long is the cable?
The extension length is 2 ft (60 cm), suitable for routing under the dash but not for long-reach external mounting.

Will it reduce wear on my scanner?
Yes. Using this extension as the regular connection point protects the scan tool's OBD connector from repeated plugging and unplugging.