Your checkout counter depends on a receipt printer that can keep pace with orders, refunds, and end-of-day sales. With two Epson thermal models on the table, the real question is which one fits your retail setup-not just which one prints. Both are thermal receipt printers with auto-cutters, so the decision comes down to price, compatibility, and how the units are presented.
Quick verdict
These two Epson printers share more than they differ on, so the meaningful differences are the price, compatibility, and purchase terms. For most retail counters, the Epson TM-T20III is the easier pick because its USD 69.99 price is the lower of the two; for buyers set on the M30II-NT M362C model, the Epson TM-M30II-NT makes sense.
Both units are used, so set expectations accordingly. The TM-T20III is explicit about Square Stand and Square Register compatibility, and it comes with the power supply but no cable. The TM-M30II-NT is explicit about a tested status and a no-returns policy. Neither unit is new-in-box, so the practical difference is whether you want the Square-friendly setup or the model-specific tested unit. If you already have a cable and a Square environment, the lower-priced T20III gets you printing with fewer extra steps. If you don't use Square and prefer the M30II-NT model, the tested status and no-returns terms are the trade-off to accept.
Price and feature comparison
| Feature | Epson TM-T20III | Epson TM-M30II-NT |
|---|---|---|
| Listed price | USD 69.99 | USD 100.00 |
| Connectivity | USB | USB |
| Print method | Thermal | Thermal |
| Cutter | JamFree auto-cutter | JamFree auto-cutter |
| Condition | Used | Used |
| Power supply | OEM Epson C1 power supply | Power supply included |
Where each printer wins
- The Epson TM-T20III wins on listed price: it is $30.01 less than the Epson TM-M30II-NT.
- The Epson TM-M30II-NT wins on model specificity: it names the M30II-NT M362C and says the printer was tested.
Product notes
Epson TM-T20III POS Receipt Printer Thermal Network USB Retail Sales Ethernet
This is the printer to pick if your checkout already uses Square Stand or Square Register. Square compatibility works over USB, so the setup path is straightforward when you have the right Square hardware. If the printer isn't recognized, updating the Square app is the suggested first step. The interface is USB only-not Bluetooth or Wi-Fi-so plan the checkout layout around a cable. There is no USB cable in the package, and that is the main thing to sort out before you can print. Once that cable is in place, the printer is ready for receipt duty.
Epson TM-M30II-NT M362C Thermal POS Receipt Printer - Power Supply - Tested
If you're set on the M30II-NT M362C model, this printer gives you that exact model designation and a tested status. That matters when buying retail gear without a return option. The purchase terms are as-is and no returns, so you should be comfortable accepting the printer as it arrives. The main appeal is the model itself: you know exactly which Epson POS printer you're getting, and the tested status adds a little confidence. The limitation is the lack of a return option, which makes the purchase more significant if something turns out to be wrong.
Final choice by use case
Pick the Epson TM-T20III when your priority is the lower listed price. Pick the Epson TM-M30II-NT when the M30II-NT M362C model is exactly what you want.

