The Star Micronics mC-Connect Drawer (39700000) is a compact hardware adapter that allows you to control standard cash drawers directly from mobile devices, tablets, and desktop computers.
Traditionally, electronic cash drawers must plug into the back of a desktop receipt printer to receive an opening signal. The mC-Connect Drawer removes this dependency. It sits between your point-of-sale (POS) device and your cash drawer, converting wireless or wired data commands into a physical opening trigger.
Equipped with USB-C, Ethernet, Wireless LAN, and Bluetooth Low Energy (LE) 5.0, this single unit adapts to whatever network or device layout your business uses. It works with standard cash drawers that use an RJ-12 (DK) cable, allowing you to update your checkout layout without buying new till drawers.
Key Features
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Printer-Free Operation: Open cash drawers directly from your iPad, Android tablet, smartphone, or PC without needing a receipt printer connected to the desk.
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Four Connection Options in One Unit: Includes USB-C, wired Ethernet (LAN), 2.4GHz Wireless LAN, and Bluetooth Low Energy 5.0 interface options built directly into the device.
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Expandable Control: Features two dedicated RJ-12 (DK) ports. It can independently control two cash drawers out of the box, or up to four drawers using a dual-drawer splitter cable.
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Intelligent Power Management: Monitors drive voltage to ensure the electronic mechanism receives enough power to fire cleanly, preventing failed opens during busy service periods.
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Compact, Magnetic Housing: Measuring just 98 x 67 x 31 mm and weighing 105g, it includes built-in magnets for hidden mounting directly onto the metal casing of your existing cash drawer.
Technical Specifications
| Feature |
Specification |
| Model |
MCD10UEWB BK |
| Part Number |
39700000 |
| Interfaces |
USB-C, Ethernet, Wireless LAN (2.4GHz), Bluetooth LE 5.0 |
| Cash Drawer Ports |
2 x RJ-12 (DK) ports (Supports up to 4 drawers via optional splitter cable) |
| Power Source |
USB bus-powered (DC 5V, 0.5A). Please note: External USB power source required for Wi-Fi/Bluetooth operations; cable included. |
| Dimensions |
98 mm (W) x 67 mm (D) x 31 mm (H) |
| Weight |
Approximately 105g |
| Wireless Security |
WPA3 Personal |
| Software Support |
Star Quick Setup Utility, Star Windows Software, StarXpand SDK |
| Compatibility |
iOS, Android, Windows, and Web-based applications |
How It Works
The mC-Connect Drawer operates as an electronic translator between your digital sales platform and your physical cash drawer.
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Physical Setup: You attach the mC-Connect unit to your cash drawer (using the built-in magnets). You then plug the cash drawer’s standard RJ-12 cable into one of the adapter’s ports.
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Power Supply: The unit is powered via its USB-C port, drawing power from a mains plug adapter or a powered POS terminal.
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Data Connection: You pair or link the adapter to your local network or tablet using Wi-Fi, Bluetooth, an Ethernet cable, or a direct USB-C link.
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The Trigger: When a operator completes a cash transaction on the POS software, the app sends an opening command over the network. The mC-Connect receives this data packet, verifies the voltage is sufficient, and instantly sends an electrical pulse down the RJ-12 cable to fire the drawer's latch.
