Quick verdict
Choosing between these two motion control options comes down to scope. If you're building a new CNC or 3D printer and want to drive NEMA 17 or NEMA 23 steppers on a tight budget, the 2PCS TB6600 driver set is the budget-minded route. If you're repairing or upgrading a machine that already uses a Parker drive, or you want an indexer drive with a dedicated stepper motor in one used package, the Parker 6104 is the more complete-and far more expensive-route. There is no single right answer; the right choice depends on your project's goals.
Price and feature comparison
| Product | Price | What you get | Signal and power | Best suited for |
|---|---|---|---|---|
| 2PCS TB6600 Stepper Motor Driver Controller 4A 9-42V | USD 16.99 | Two drivers for NEMA 17/23 motors; output current 0.5A-4.0A; input 9-42VDC; selectable subdivision up to 32 | Pulse/direction, optocoupler isolation; protection against overheat, overcurrent, undervoltage, reverse polarity | DIY CNC, 3D printers, engraving machines |
| Parker 6104 Indexer Drive and Stepper Motor | USD 300.00 | Used indexer drive plus Zeta stepper motor; power cable added for shipping | Indexer drive with dedicated motor; previously running on a retired machine | Industrial integration projects |
Where each wins
On price, the TB6600 set wins outright. The Parker 6104 wins on integration: it combines the indexer drive and the Compumotor Zeta motor in one used package, so you don't have to shop for a motor as a separate part. The TB6600, by contrast, is just a driver board; you need to supply the stepper motor, controller, and power wiring yourself. That price gap reflects a broad difference in what you're taking on: a new driver-only board kit versus a used integrated drive-and-motor unit.
Product notes
2PCS TB6600 Stepper Motor Driver Controller 4A 9-42V
The 2PCS TB6600 is a low-cost way to add two-axis control to a NEMA 17 or NEMA 23 machine. At $16.99, you're getting a pair of compact driver boards that accept 9-42VDC and deliver 0.5A to 4.0A per phase, with pulse/direction signals and selectable subdivision up to 32. The optocoupler isolation helps keep interference from disrupting your steps, and built-in protection covers overheat, overcurrent, undervoltage, and reverse polarity. The downside is that these are bare drivers. You'll need a separate controller (such as a microcontroller or breakout board) to generate the pulses, and you also need to source motors and a power supply. For a beginner, wiring two drivers to one power supply can take some care. But if you're comfortable with basic electronics, this set solves the cost problem quickly.
Parker 6104 Indexer Drive and Stepper Motor
The Parker 6104 Indexer Drive and Stepper Motor is a used, more complete package. The package includes the Parker Zeta drive and a Compumotor Zeta motor, and the seller will add a power cable before shipping. It's priced at $300, so you're paying for integration instead of sourcing parts separately. The unit came out of a retired machine, was working when removed, and has been sitting for a year, so the used condition carries some risk. That tradeoff can make sense if you already work with Parker indexer drives or need a motor-and-drive pair without shopping for each part. For a brand-new hobby build, though, the higher price and used status make the TB6600 pair far easier to justify.
Final choice by use case
Choose the 2PCS TB6600 drivers if you're starting a new CNC, 3D printer, or engraving machine with NEMA 17/23 motors and you want to keep costs low. Choose the Parker 6104 indexer drive and motor if you need a used industrial package that combines the drive and motor, or if you're familiar with Parker/Compumotor hardware and want that integrated approach despite the higher price. Think about your timeline and your willingness to work with used electronics. The TB6600 set is a new component you can design into a fresh build, while the Parker 6104 is an as-removed unit meant for someone who can test and integrate it.
