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Call 0345 2300 599Please note: This listing is for the VFLEX Base only. An appropriate VFLEX X Connector adaptor cable is required to connect the VFLEX Base to your radio, accessory, or other DC-powered device.
The VFLEX Base is a configurable USB-C Power Delivery output interface designed to let amateur radio operators power compatible DC equipment from a suitable USB-C PD power source.
It can be configured to request an output voltage from 5V to 48V, depending on the capability of your USB-C power supply, mains adaptor, or power bank. This makes it a flexible option for portable radio, QRP operating, shack accessories, test bench use, and field station setups.
Configuration is carried out using the VFLEX app from a phone, tablet, or computer, including iOS, macOS, Android, and web browsers. Once set, the configuration is stored in the device’s memory, so VFLEX can automatically negotiate the selected voltage whenever it is connected to a compatible USB-C Power Delivery source.
The VFLEX Base features rugged anodised aluminium and ABS construction, an RGB LED status indicator, and an X Connector output interface capable of up to 5A output. With the correct adaptor cable, it can be used with a wide range of radio accessories, DC equipment, and portable station devices.
User Manual
Click here to access the user manual
Important Note
VFLEX is not a power supply by itself. It negotiates power from a compatible USB-C Power Delivery source, so the available voltage and current will depend on the power supply, cable, and selected VFLEX configuration.
Please check the voltage, current draw, and polarity requirements of your radio or accessory before connecting. Incorrect voltage or polarity may damage connected equipment.
Output adaptor cables, USB-C power sources, and connected radio equipment are sold separately unless otherwise stated.
Getting Started
- Access the VFLEX app at vflex.app
- Connect VFLEX to your phone, tablet, or computer using a USB-C cable
- Enter the desired output voltage using the VFLEX app
- Optionally enter details about your device and power source to help confirm compatibility
- Disconnect VFLEX from the phone or computer
- Connect VFLEX to a compatible USB-C Power Delivery source
- Confirm successful negotiation using the green LED indicator
Key Features
- Configurable USB-C Power Delivery sink negotiator
- Output voltage configurable from 5V to 48V
- Output current up to 5A
- USB-C Power Delivery negotiation
- USB Full Speed data communication
- Secure firmware update via USB
- RGB LED status and diagnostic indicator
- Power Good monitoring
- Power Delivery Object scanning
- X Connector output interface
- Supports a wide range of VFLEX adaptor cable options
- Stores configuration in on-device non-volatile memory
- Compatible with iOS, macOS, Android, and web apps
- Rugged anodised aluminium and ABS construction
Amateur Radio Uses
- Powering compatible QRP radios from USB-C PD power sources
- Portable, Field Day, SOTA, and POTA power setups
- Powering radio accessories and station equipment
- Creating compact DC power solutions for temporary stations
- Powering tuners, interfaces, small computers, and compatible DC devices
- Replacing bulky fixed-voltage power supplies where suitable
- Voltage drop compensation in portable installations
- Testing and powering DC equipment on the bench
Supported USB-C Power Delivery Modes
- Standard Power Range fixed voltages
- Standard Power Range PPS
- Standard Power Range AVS
- Extended Power Range fixed voltages
- Extended Power Range AVS
Lockable Configuration Options
- Soft Lock with warning
- Authorised Lock requiring a token
- Permanent Lock
Specifications
| Specification | Details |
|---|---|
| Input voltage | 3.4-50V |
| Maximum pass-through current | Up to 5.2A |
| Output current | Up to 5A |
| Ambient operating temperature | -40°C to +60°C |
| USB-C rated cycles | 5,000 cycles |
| X Connector rated cycles | 100 cycles |
| USB data | USB Full Speed |
| Output interface | X Connector |
| SPR fixed PDO support | 5V, 9V, 12V, 15V, and 20V |
| PPS support | 3.3-20V |
| SPR AVS support | 3.3-20V |
| EPR fixed PDO support | 28V, 36V, and 48V |
| EPR AVS support | 15-48V |
Getting Started
- Access the VFLEX app at vflex.app
- Connect VFLEX to your phone, tablet, or computer using a USB-C cable
- Enter the desired output voltage using the VFLEX app
- Optionally enter details about your device and power source to help confirm compatibility
- Disconnect VFLEX from the phone or computer
- Connect VFLEX to a compatible USB-C Power Delivery source
- Confirm successful negotiation using the green LED indicator
Shipping & Delivery
We offer UK and international delivery services, including next working day and selected weekend options for eligible orders. Available services, prices and estimated delivery times are displayed at checkout.
Delivery Information
Delivery options depend on the parcel's size, weight, contents and destination. Express and weekend services are subject to availability and cut-off times. Oversized or exceptionally heavy items may require a specialist delivery quotation.
Returns & Cancellations
To arrange a return, please contact ML&S or complete our returns form. You may also exercise your statutory right to cancel by email or another clear statement, without completing the form.
Changed Your Mind?
Under the Consumer Contracts Regulations 2013, most purchases made online or by telephone can be cancelled within 14 days of receipt.
You must notify us of your cancellation within this period and return the goods within a further 14 days.
Please handle all goods with care. Returned items must be in a resaleable condition, complete with their original packaging, and all supplied accessories.
You may inspect goods as you would in a shop. Handling beyond what is necessary to inspect them may result in a lawful deduction for diminished value.
Exceptions
Modified Equipment & Reversal Charges
Additional return conditions may apply to equipment modified at the customer's request, including wideband transmit or receive modifications.
ML&S may charge a reasonable fee to reverse physical modifications and restore the equipment to its original factory specification. Any such charge will be agreed in advance and deducted from your refund.
Custom-Made Cable Assemblies
Coaxial cable assemblies manufactured to a customer's specifications are excluded from the 14-day return policy and are non-refundable unless faulty.
Software & Labour Charges
Labour and modification charges requested by the customer are non-refundable once the work has been completed.
Computer software may only be returned under the 14-day return policy if it remains sealed and unopened.
Return Postage Charges
Customers are responsible for the direct cost of returning unwanted or incorrectly ordered goods, where permitted by law. You may arrange your own suitable return postage or use one of our optional prepaid services.
Standard Parcels
Royal Mail Return Label
£5.95
Per parcel
For eligible standard-sized parcels, subject to Royal Mail restrictions. Free collection included.
Larger Parcels
DPD Return Label
£7.95
Per parcel
For larger or heavier parcels and any shipments with batteries.
Collection Service
DPD Collection
£25.00
Per parcel
Available upon request for eligible addresses, subject to availability.
Prepaid return charges will be confirmed before booking and deducted from your refund.
These prices apply to eligible UK mainland returns. Oversized items, specialist products and returns from other destinations may require a separate quotation. Estimated return costs will be disclosed before purchase.
Faulty or Incorrectly Supplied Goods
Return postage charges do not apply to faulty, damaged or incorrectly supplied goods returned under statutory rights. ML&S will arrange a free return in these circumstances.
Refunds
Refunds are processed without undue delay following receipt and inspection of returned goods, and no later than 14 days after we receive goods returned under statutory cancellation rights.
Refunds will be issued to the original payment method. Any prepaid return postage charges or lawful deductions for diminished value will be itemised.
Warranty Terms & Conditions
New Equipment Warranty
Minimum 2-Year Warranty
All new products supplied by ML&S carry a minimum two-year warranty against manufacturing defects, excluding batteries, which are covered by separate warranty terms.
Some manufacturers provide extended warranties, such as the three-year warranty available on eligible Yaesu equipment. Any additional coverage is subject to the manufacturer's terms and conditions.
Our workshop may assess and repair faulty equipment on site or refer it to the manufacturer or an authorised service centre where necessary.
Warranty exclusions may include batteries, normal wear and tear, accidental damage, misuse and unauthorised modifications, as specified in the applicable warranty terms.
All warranties are provided in addition to your statutory consumer rights against ML&S, which are not limited by the warranty period.
International Returns & Warranty
Unless otherwise stated, ML&S warranty servicing is carried out in the UK. International customers must contact us before returning goods to confirm shipping and customs requirements.
International customers are responsible for return postage unless the goods are faulty and ML&S has been notified within a reasonable time.
ML&S accepts no responsibility for additional charges resulting from incorrectly completed customs documentation. Any additional duties charged to ML&S as a result will be billed to the customer before return of the goods.
Need Help With a Return?
Our team can assist with returns, postage arrangements, modifications and warranty claims.
Nothing in these terms excludes or limits your statutory consumer rights.











