# Vretti 420B 4×6 USB Thermal Label Printer

The Vretti 420B is a USB-connected monochrome thermal printer for shipping and other labels up to 4×6 inches. Its built-in holder is claimed to accommodate rolls of up to 500 labels, while the listing identifies USB rather than wireless connectivity.

- [Original product page](https://bargainpostbox.co.uk/product/vretti-420b-4x6-usb-thermal-label-printer)
- [View offer](https://bargainpostbox.co.uk/visit/vretti-420b-4x6-usb-thermal-label-printer)
- Market: UK
- Language: en-GB
- Currency: GBP
- Brand: vretti
- Model: 420B
- Category: Computers > Printers / 3D & Scanners > Printers / 3D & Multifunction
- Price: 66.47 GBP
- Previous price: 89.99 GBP
- Discount: 26%
- Price checked: 2026-11-12T15:52:49.927Z
- Rating: 4.3 / 5
- Reviews: 873

Prices and deal status are the latest recorded data, not a guarantee of availability. Confirm the price and availability with the store.

## At a glance

- Direct thermal printing avoids ink or toner, according to the listing.
- USB connection is intended for use with a compatible computer. The feature text names Windows, macOS, Linux and ChromeOS.
- A built-in holder is claimed to take a roll of up to 500 labels and rolls up to 4 inches in outer diameter.

## Pros

- The 4×6-inch maximum supported label size suits common parcel and postage-label workflows.
- The built-in roll holder can reduce interruptions for roll changes when using a compatible roll.
- Monochrome thermal output avoids buying ink or toner for label printing.

## Cons

- USB-only connectivity excludes direct Bluetooth and Wi-Fi printing, according to the feature text.
- Monochrome output is limited to black-and-white label work.

## Specifications

### Identity and output
- Brand: vretti
- Model: 420B
- Printing technology: Thermal
- Output: Monochrome
- Print media: Labels
- Resolution: 203DPI
- Maximum supported paper size: 4 x 6 inches
- Print functions: Print Only
### Connectivity and controls
- Connection listed: USB
- Control method listed: App
- Compatible devices: Laptops, PC
- Printer languages: TSPL, EPL, ZPL and DPL
### Media handling
- Built-in holder capacity claim: Built-in label Holder holds a roll of up to 500 labels and supports rolls up to 4 inches in outer diameter, helping reduce the need for frequent roll changes
- Supported label widths: 1 to 4.5 inches with compatible label media
### Dimensions and installation
- Dimensions (D × W × H): 21.5D x 17.8W x 15.5H centimetres
- Weight listed: 1.35 Kilograms
- Colour: Black
- Special feature: Portable

## Before you buy

- The listing details are inconsistent: it says the printer is USB-only and has no Bluetooth or Wi-Fi, but also lists App control and Ethernet as a hardware interface. Treat USB as the substantiated connection and confirm the intended control method before purchase. The specification table also gives conflicting print-speed, resolution, duplex, paper-capacity and power figures, so those are not presented as settled specifications. The included 4×6-inch size and supported media widths may require compatible labels.

## In the box

- Labels (Included)
- Power adapter (Included)
- Power cord (Included)
- Setup guide (Included)
- USB cable (Included)

## A good fit for

- Small businesses or home shippers who print monochrome parcel labels from a USB-connected computer.
- Buyers who want a built-in roll holder and use compatible thermal labels.

## Less suited to

- Anyone needing wireless printing or a confirmed phone-app workflow.
- Anyone needing colour output, general document printing or confirmed automatic duplex printing.

## Customer feedback

Customer feedback describes setup as straightforward, with reports of quick output and clear monochrome printing. Some customers find its 4×6 label printing suitable, while others report problems with that label format. That mixed experience matters because 4×6 shipping labels are a main intended use, and the listing specifies USB connection and 203 DPI output. Feedback is not a guarantee of performance with every label or computer.
- Positive themes: Customers report easy setup and quick printing.
- Positive themes: Feedback mentions clear output and positive impressions of print appearance.
- Mixed feedback: Feedback on 4×6 label printing is mixed, with some customers finding it suitable and others reporting issues.

## Frequently asked questions

### Does the Vretti 420B print wirelessly?
The feature description says this model is USB-only and has no Bluetooth or Wi-Fi. The details also list App control, so confirm the intended control method if app-based use matters.
### What label sizes does it support?
The listing specifies a maximum supported paper size of 4 x 6 inches and says label widths from 1 to 4.5 inches work with compatible media.
### Does it use ink or toner?
The feature description identifies direct thermal printing and says it prints without ink or toner.
### How many labels can the built-in holder take?
The listing claims the holder accommodates a roll of up to 500 labels and supports rolls up to 4 inches in outer diameter.

## Alternative options

- [4x6 Thermal Label Printer with Built-in Label Holder, Bluetooth & USB \| Inkless Printing, Fast Setup, Wireless Printing, Cost-Effective Shipping Solution for Small Business, & Home Offices](https://bargainpostbox.co.uk/visit/vretti-420b-4x6-usb-thermal-label-printer)
- [L LIKED 4"x 6"\(101x152mm\) 1000Pack Direct Thermal Shipping Labels\(4 Rolls\) \| 250 Labels/Roll,Self-Adhesive Shipping Labels with Perforated Lines,Compatible with Zebra, MUNBYN, Rollo,Jadens, Nelko](https://bargainpostbox.co.uk/visit/vretti-420b-4x6-usb-thermal-label-printer)
- [ETIKEZ Bluetooth 4x6 Thermal Shipping Label Printer for Parcels, Black \| Postage parcel label machine, supports iOS, Android, Windows Mac, works Amazon, Shopify, Etsy, Royal Mail, Evri, DPD, DHL](https://bargainpostbox.co.uk/visit/vretti-420b-4x6-usb-thermal-label-printer)
- [MUNBYN Shipping Label Printer, 4x6 Thermal Printer, 403B, All Black \| for Small Business, Compatible with iPhone, Android, Windows, macOS, Etsy, Shopify, Royal Mail, DHL, DPD, Evri](https://bargainpostbox.co.uk/visit/munbyn-rw403b-4x6-thermal-shipping-label-printer)
- [Dymo LetraTag LT-100H Label Maker Starter Kit \| Handheld Label Printer Machine \| with White Plastic, Clear Plastic & Paper Labels \| Ideal for Office or Home](https://bargainpostbox.co.uk/visit/vretti-420b-4x6-usb-thermal-label-printer)
- [MUNBYN Shipping Label Printer Bluetooth, Postage Thermal Label Printer 4x6 for Business, Compatible with Etsy, Shopify, Royal Mail, DHL, DPD, Evri, with 25 Labels, 130B, Black](https://bargainpostbox.co.uk/visit/vretti-420b-4x6-usb-thermal-label-printer)
- [Direct 4"x6" Thermal Labels 6 Rolls 1500 Labels White Printer Thermal \| Shipping for Address Shipping Postage USPS UPS Zebra Toshiba Citizen Eltron and Orion Printers](https://bargainpostbox.co.uk/visit/vretti-420b-4x6-usb-thermal-label-printer)
- [JADENS 4x6 Bluetooth Thermal Label Printer with Built-in Label Holder \| Inkless Printing, Wireless Printing, Cost-Effective Shipping Label Printer for Small Business, & Home Offices, Fast Setup](https://bargainpostbox.co.uk/visit/vretti-420b-4x6-usb-thermal-label-printer)
- [Spartan Industrial - 76 x 51 mm \(3 x 2 in\) Direct Thermal Labels \(10 Rolls, 700/Roll\) Perforated Postage Shipping Labels - Compatible with Rollo and Zebra Desktop Printers](https://bargainpostbox.co.uk/visit/vretti-420b-4x6-usb-thermal-label-printer)
- [58mm x 60mm Direct Thermal Scale Labels for Zebra, Toshiba, Cas, Dibal, Avery Berkel, 44mm core Meat Cake Shop Butcher Bakery Scale \| 500 Labels per roll - Make me a label \(1 roll - 500 Labels\)](https://bargainpostbox.co.uk/visit/vretti-420b-4x6-usb-thermal-label-printer)
- [JADENS Bluetooth Thermal Label Printer, 4x6 Shipping Label Printer, 50 Labels Included, Compatible with Hermes, Royal Mail, DHL, DPD, Evri, Amazon, Shopify](https://bargainpostbox.co.uk/visit/vretti-420b-4x6-usb-thermal-label-printer)
- [CLABEL 221D Desktop Bluetooth Label Printer for Small Business \| Thermal Label Printing, Open-System Labels, 20-50mm Widths, Barcode & Address Labels, Phone/PC Printing, Office & Retail Use](https://bargainpostbox.co.uk/visit/vretti-420b-4x6-usb-thermal-label-printer)

## Add-ons

- [Deco Fluer Self-Adhesive Labels 4"x6" Ideal for Thermal Printer \[Pack of 1-500 Label\]](https://bargainpostbox.co.uk/visit/vretti-420b-4x6-usb-thermal-label-printer)
- [Self Adhesive Address Labels, Blank Direct Thermal Label Stickers by Binswloo, 60mm x 30mm, Roll of 800](https://bargainpostbox.co.uk/visit/vretti-420b-4x6-usb-thermal-label-printer)

## Images

![Vretti 420B 4×6 USB Thermal Label Printer — 1](https://bargainpostbox.co.uk/i/ieGe69WUvJidzdvsEiZnR5lOA8tI6GOgupGs3us-dTAxP3dgg7Oa1NWqC9ft7iKtnwchjEVlG49Slg_azdeqTOmj-Tih6I-_-p92HY9kSjXbjUILH44AQson.jpg)

![Vretti 420B 4×6 USB Thermal Label Printer — 2](https://bargainpostbox.co.uk/i/RmGQTJGVtUu80e_LcNX34SN939LlUyFVmil4KH8XcsWBkum3Wpis41I1b1NUkYVGb-KtXqJBPsM85qa5P0u3poxEcfRjeURFXWvmBc7ByKV_bOC2XzuXjcGT.jpg)

![Vretti 420B 4×6 USB Thermal Label Printer — 3](https://bargainpostbox.co.uk/i/knYCNTlJFSVVGdFf6AeqrrvtqrPxGLtUmPYgRre1LIod941iK4z6dJn2qUM1hryDLHGhoyAeA9ZzMvG9AMdsfuCT1DEteTkTl0Anmh--pMdfYH_ZHjQgLQ3r.jpg)

![Vretti 420B 4×6 USB Thermal Label Printer — 4](https://bargainpostbox.co.uk/i/AZduJLYX77yuE7xp7a_U-dLX9h67jW397NR0oQRldCEfEnaWlVaHLVTCOkNwE-Qo6UX5n5Wfqnhxfmi5MKzJv5YZX-aiTsJZeV2JqhBZes5qSY5nWBJCqUIq.jpg)

![Vretti 420B 4×6 USB Thermal Label Printer — 5](https://bargainpostbox.co.uk/i/6PD8-asn0i3avPRf4-TgaHLyBVDcdy9DwXmzfu9AyXbZ3GDhDldyJMFDyQK_42YpreXDu13od9X7Lo5UAN3gBJDFTOO9C8rHqLpQa_gGKlWEsahrNhVxiyQX.jpg)

![Vretti 420B 4×6 USB Thermal Label Printer — 6](https://bargainpostbox.co.uk/i/TBSsoK_zDjoyxUlgmSg3WdkId5404SwIeIZqE1zwE1-sdbgwsZwmKX7ItnvKxNoyRhqswQA2D6Eji0J4EifutExehdw8bUPnblwE1mdF5REEQm_P7jsjC5Ya.jpg)

![Vretti 420B 4×6 USB Thermal Label Printer — 7](https://bargainpostbox.co.uk/i/ZMhldLGk-ViLZm75RnXetpSSW-ihGXWm0-Eux9wtN9KLoYZlfV9hLsAe6WSX7-15hP6rtNQqA0eIEaQLbZFxkBIi-fKK6NmXax1sg0MYOkxqKMSs_y7-KYzI.jpg)