QFX CV-103 Digital Converter Box
- RF in (antenna) and RF out, plus HD out and video out
- USB port records channels and plays media files
- Sleep timer plus on-screen program, picture and channel search
- 5 volts DC minimum supply voltage
- 5.1 x 1.3 inches, 4.8 ounces, plastic body
- Power adapter, A/V cable, remote and UL adapter included
Last refreshed Aug 4, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A small box that lets an older television pull in free over-the-air digital channels and record them to a USB drive. It does not add streaming apps, and the listing does not name a supported screen resolution.
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ASIN: B00WN5ZDVQModel: CV-103Category: Video Converters
Overview
A living room or bedroom with an older television is where this box earns its place. Signals arrive through the antenna input, the box tunes the digital channels, and the picture leaves through the RF, HD or video output to the screen. A USB drive plugged into the port stores recordings and plays back music, photos and video files.
Keeping a working television in service is the point here: the box tunes free over-the-air broadcasts so the set does not have to be replaced. Recording to a USB drive and a sleep timer round out the everyday use. The limitation is scope, since nothing in the listing promises streaming apps or a stated screen resolution, and the recordings are saved as PVR files rather than a common format.
Who it's for
Homes that still get their programming from an antenna and want to add recording without replacing the television. The connection options cover RF, HD and video outputs, so several generations of sets can be fed. Viewers who expect built-in streaming services should look elsewhere.
Pros and cons
- Takes an antenna feed and tunes digital channels
- Records channels straight to a USB drive
- Plays music, photos and video from USB
- Sleep timer for falling asleep to the screen
- Screen resolution not listed
- PVR file format limits where recordings play
- No network or streaming features listed
- Channel count not stated
Performance notes
The antenna feed and the tuner inside the box decide how many channels come in and how steady they stay, so a weak signal shows up as breakup no matter which output feeds the television. Recording quality follows the broadcast itself because the box stores the stream rather than re-encoding it. The output you choose, RF, HD or video, sets how the picture reaches the screen.
Specifications
| Brand | QFX |
|---|---|
| Model | CV-103 |
| Dimensions & fit | |
| Item Weight | 0.3 pounds |
| Item Dimensions L X W | 5.1 × 1.3 inches |
| Power & efficiency | |
| Minimum Supply Voltage | 5 volts |
| Construction & materials | |
| Material Type | Plastic |
| Compatibility & installation | |
| Mounting Type | Surface Mount,Plug Mount |
| Compatible Devices | Television |
| Interface | USB |
| Included components | |
| Unit Count | 1 |
| Included Components | Comverter Box |
| Warranty & support | |
| Warranty Description | Check Manufacture |
| Other details | |
| Number Of Items | 1 |
| Number Of Pins | 5 |
| Number Of Channels | 1 |
| Part Number | B00WN5ZDVQ |
Frequently asked questions
Is the QFX CV-103 a streaming device?
No. It tunes free over-the-air digital broadcasts from an antenna and sends the picture to a television through RF, HD or video output. Nothing in the listing mentions network streaming services.
What comes in the box with the CV-103?
The box ships with a power adapter, an A/V cable, a remote control, a UL adapter and a user manual.
Can I record shows with the QFX CV-103?
Yes. A USB memory device plugged into the box records channels, and the recordings are saved as PVR files. The same USB port plays music, photos and video files you load onto it.
Why does the screen show a No Signal message?
The user manual covers that message along with a unit that will not turn on, distorted or missing picture, missing sound, and a remote that stops working. Check the antenna connection and the selected input first.
Do I need a new television to use this converter box?
No. The box lets an existing television receive digital broadcasts, which is the reason to add it instead of replacing the set. It connects through the RF, HD or video output your television accepts.