Marinco — Combo Dual USB & 12V Socket — MAR-12VCOMBO
Free returns on all eligible orders
You have 30 days to request a return. All sale items are final sale.
Marinco Combo Dual USB & 12V Socket — Part 12VCOMBO
The Marinco 12VCOMBO combines a dual USB charger and a 12VDC power receptacle in one unit. The two USB ports charge cell phones, tablets, and other USB devices, while the receptacle powers 12V accessories. A blue LED shows when power is available, and a water-resistant cover helps keep water and dirt out of the ports.
Part Details
- Part number: 12VCOMBO (SKU MAR-12VCOMBO)
- Brand: Marinco
- Product type: Combo dual USB and 12V power socket
- Input: 12 VDC
- USB output: 5V, 2.1A total (two ports)
- Receptacle: 12 VDC output, rated up to 20 amps
- Power indicator: Blue LED power indicator light for the USB ports
- Protection: Water-resistant covers protect against dust and water
- Included: Insulated terminals
- Condition: New
Compatible Applications
- Boats, RVs, and other vehicles that need both USB charging and a 12V accessory socket at one location
- Charging cell phones, tablets, and other USB devices, and powering 12V accessories up to 20 amps
- If you are planning an installation, confirm the mounting cutout and your accessory loads before ordering
Key Features
- Dual USB charger with 5V, 2.1A total output
- 12VDC receptacle rated up to 20 amps
- Blue LED power indicator light for the USB ports
- Water-resistant covers protect against dust and water
- Insulated terminals included
- 12 VDC input
Technical FAQ
What is the USB output?
The dual USB ports provide 5V with a 2.1A total output.
What is the receptacle rated for?
The 12 VDC receptacle is rated up to 20 amps.
Does it protect the ports?
Water-resistant covers protect against dust and water entering the ports.
Are terminals included?
Yes, insulated terminals are included.
Related Products
- Vertex Dual USB-A & USB-C 12V Power Socket (82330) — a similar combo panel from a different brand, with USB-C charging
- Sea-Dog Dual USB Rocker Switch Power Socket, 12-24V (426520) — a dual USB socket with 12-24V input
- Blue Sea Systems USB Port Charger, 12VDC Dual USB 2.1A (1016)
- Scanstrut Ventura Dual USB-C Socket (SC-V-USB-01) — an exterior-rated dual USB-C option
Parts Desk Insights
- Best use case: Adding USB charging and 12V accessory power at one location on a boat or RV, with a water-resistant cover for wet and dusty environments.
- Most common customer mistake: Expecting fast-charge speeds from the USB ports. The dual USB output is 5V at 2.1A total, so devices that need more current will charge slowly; the receptacle's 20A rating applies to the 12V socket, not the USB ports.
- Sizing and fitment guidance: Confirm the mounting cutout and the clearance behind the panel before ordering, and use the included insulated terminals when wiring. If you are running accessories near the 20A rating, verify your wire size and circuit protection.
Shipping information
In-stock and OEM parts: ship same or next business day.
Locally warehoused items: ship within 1-3 business days.
Special-order items: timeline confirmed after order.
Returns & warranty
Returns & Satisfaction Guarantee
We stand firmly behind the quality of every product we sell. Your confidence matters to us — and we back it with a straightforward 30-Day Satisfaction Guarantee.
If you are not fully satisfied, you may request a return within 30 days of delivery. All returns must receive pre-approval prior to being sent back. Unauthorized returns will not be accepted.
To qualify for a return:
Item must be in new, unused condition
Product must be in its original packaging
All parts, components, hardware, manuals, and accessories must be included
Packaging must be undamaged and suitable for resale
Important:
Electronics are strictly inspected. No returns on open-box electronics. Exceptions may apply only with prior written approval. Any electronic unit that has been installed, powered, activated, or altered may not be eligible for return.
We are serious about product integrity — and equally serious about taking care of our customers. If there is ever a product issue, contact us immediately so we can make it right.
For return authorization, please contact our support team before shipping anything back.