A USB receipt printer connects by cable to a supported POS device, sometimes through a required hub or adapter. An Ethernet receipt printer connects to your store’s local network through a router or network switch. USB can be a practical choice for one fixed checkout; Ethernet is worth considering when printer placement or supported network printing matters.

Start by confirming which printer models and connection methods your POS supports. Then compare the options that work with your setup. A printer with the right socket can still be the wrong purchase if your software cannot use it.

Check Your POS Before Comparing Connections

Write down your POS software, the device running it, and its operating system. Then check the POS provider’s hardware documentation for the exact printer model and connection you plan to use.

Look for a match across all four:

• Printer model: Include the full model number and interface variant.
• POS software: Check the app or software version and its supported hardware.
• Device and operating system: A supported setup on one device may differ from the setup on another.
• Connection method: Support for a model over Ethernet does not automatically establish USB support.

For example, Shopify’s instructions for supported Epson T20 and T88 series printers require a POS Hub for USB, while Ethernet connects through the router. That is a requirement for those specific setups, not a rule for every receipt printer. See Shopify’s connection requirements.

Also separate three different claims: a computer recognizes a printer, a driver can print a test page, and the POS can print receipts correctly. Before buying, ask about the last one, including any cutter or cash drawer functions you need.

An ESC/POS listing is useful technical information, but it does not establish compatibility with every POS app. Loyverse, for example, distinguishes supported models, interfaces, and operating systems in its hardware guidance. Check Loyverse’s supported-printer guidance.

USB vs Ethernet Receipt Printers: A Practical Comparison

For a supported USB setup, you can avoid configuring a printer’s network address. Depending on the device and POS, however, you may still need a driver, an approved hub, or a particular adapter. A cable that fits does not settle those requirements. Loyverse’s Android USB setup illustrates the device and adapter checks involved.

With Ethernet, the printer joins the local network. The POS may discover it automatically or need its IP address entered during setup. Ask whoever manages your network how the printer will remain reachable after equipment changes. Loyverse’s Ethernet setup guide shows both address entry and discovery options for supported printers.

Neither connection label guarantees faster receipt output. Compare the complete setup: how the POS sends the job, the printer’s capabilities, and the receipt layout you actually use.

Three Checkout Setups to Consider

One Fixed Computer and One Nearby Printer

Imagine a repair shop with one checkout computer and a printer beside it.

If the POS supports the chosen printer over USB, a direct connection may meet the need without adding printer network configuration. Check the cable route, available ports, and the driver requirements for that computer.

Before ordering, ask: “Can our current POS print to this exact model over USB on this computer?”

If you plan to change to a tablet or a different POS soon, include that change in the buying decision. Compatibility with today’s computer does not confirm tomorrow’s setup.

A Printer Positioned Away From the Checkout

Consider a store that wants its printer on a separate counter, with an existing network connection nearby.

Ethernet may suit that layout when the POS supports network printing to the chosen model. Check the physical cable route and who will configure the printer in the POS.

The useful question is: “Can this POS reach and print to this model over our local network from the intended location?”

Also plan where employees will collect the receipt and replace the paper. A convenient network connection does not necessarily make a convenient checkout position.

A Tablet or Multiple Checkout Terminals

A tablet does not automatically require a wireless printer. In a supported network setup, the tablet may use Wi-Fi while the printer connects to the router by Ethernet. The printer itself still has a wired connection. See an example in Loyverse’s Ethernet setup instructions.

For several terminals, confirm that the POS supports sending their print jobs to the intended printer. An Ethernet port alone does not establish that workflow.

Ask the POS provider:

• Can each intended terminal print to this exact model?
• How is the correct printer selected for each checkout?
• How will staff identify which terminal produced a receipt?
• If a cash drawer is involved, which checkout is supposed to open it?

Before-You-Buy Checklist

Keep this checklist with the printer listing you are comparing.

• Confirm the exact combination. Record the printer model, POS version, device, operating system, and connection method together.
• Check the full connection path. Identify the required cable, hub or adapter, network port, and power supply. Verify what is included.
• Check the receipt you need to print. Confirm paper requirements and support for your layout, logo, barcode, or other required content.
• Check additional functions. If you need automatic cutting or cash drawer control, confirm those functions with the proposed POS setup.
• Identify the setup resources. Locate the correct manual and any required driver before the printer arrives.
• Plan a test before relying on it at checkout. Use a POS training or test mode where available. Check item names, quantities, taxes, totals, cutting, and any required drawer action.

You can copy this message when contacting your POS provider or printer supplier:

We use [POS software and version] on [device model and operating system/version]. We are considering [exact printer model] connected by [USB or Ethernet]. We need [one checkout / multiple terminals] and [do / do not] need cash drawer control.

Is this exact combination supported? Which driver, hub, adapter, or network settings are required? Can it print receipts and perform the cutter and drawer functions we need?

Keep the reply with your equipment records. It gives whoever installs or replaces the printer a clear description of the intended setup.

Where the NUCOUN VCP-8370 Fits

The NUCOUN VCP-8370 is an 80mm thermal receipt printer with USB and LAN connections and ESC/POS command support. It is an option to evaluate for a fixed checkout once compatibility with your particular POS, operating system, and connection has been confirmed. It does not support Wi-Fi or Bluetooth and is not compatible with Square or PayPal. Review the VCP-8370 specifications.

If its wired connections fit your requirements, use the checklist above to confirm the remaining details before ordering. Choose another model if your POS requires different supported hardware or your checkout needs wireless printer connectivity.

For model documentation and setup resources, visit the NUCOUN Support Center. Keep your POS and device details ready so the compatibility question is specific to the equipment you will actually use.