Amazon.com : CNCTOPBAOS 4 Axis Milling Machine CNC Controller,1000KHz Offline Standalone PLC,DDCS Expert Motion Control System with MPG Handwheel for CNC Router/Lathe/Engraving Machine/Servo/Stepper Motor : Tools & Home Improvement
Amazon.com: CNCTOPBAOS 4 Axis CNC Controller 1000KHz DDCS Expert Motion System Offline Standalone Servo/Stepper Motor Drive Control with 6 Axis MPG Handwheel+M3K Extended Keyboard+2pcs 75W 24V DC Power Supply : Electronics
Amazon.com: RATTMMOTOR 4 Axis USB Mach3 CNC Controller Kit 57mm Dual Shaft Nema23 Stepper Motor & Bracket+CNC Motion Control Board Mach3 USB Card+TB6600 Stepper Motor Driver+350W 24V DC Switching Power Supply :
3 or 4 Axis TB6560 stepper motor driver board - RobotDigg
New Grbl 4axis Stepper Motor Controller Control Board With Offline/300/500w Spindle Usb Driver Board For Cnc Laser Engraver - Wood Router - AliExpress
Gecko Diver G540 4 Axis Driver
Amazon.com: 4-Axis DSP Based Digital Stepper Driver Max 60VDC/6.0A, MX4660 : Electronics
Servo Stepper Motor Offline Motion Controller Programmable 1-4 Axis CNC Controller RS485 TC55V USB Engraving Router - AliExpress
TS Series 4 Axis 9.0Nm(1274.76oz.in) Nema 34 Closed Loop Stepper Kit w/ Power Supply & 2m Cable - 4-CLTS90|STEPPERONLINE
CNCTOPBAOS 4 Axis Offline Stand Alone CNC Motion Controller System DDCSV3.1,Servo/Stepper Motor Control Replace Mach3 PLC+100PPR MPG Handwheel with E-stop for CNC Router Engraving Machine - Amazon.com
Soigeneris - your resource for hi-tech hobbies. STDR-4C 4-Axis stepper motor contorl system
DDCS V3.1 Standalone/Offline CNC Motion Controller – BULK-MAN 3D
CNC 4 Axis Controller DSP Controlled - TB6560 Stepper Motor
Acorn CNC controller, Step and Direction 4 axis CNC Control board with ethernet communication.DIY CNC kit
Servo-Tec Plasma 4-Axis NEMA 34 Stepper Motor Controller – procutcnc.com