Quick answer: The drawer does not connect to your tablet. There is no Bluetooth cash drawer worth buying and no app that opens one. It plugs into the receipt printer with an RJ11 cable, and the printer fires the pulse. StoreHub sends a command to the printer; the printer opens the drawer.
That has a consequence specific to tablet POS: if the printer is unreachable, the drawer will not open. On a network printer that means a Wi-Fi problem becomes a cash problem. Know where the manual key is before you need it. Our NBCD-410 comes in 12V or 24V — tell us your printer and we ship the matching build.
Why there is no tablet cash drawer
People setting up a tablet POS for the first time often go looking for a Bluetooth cash drawer, reasonably enough. It is worth explaining why that is a dead end.
A cash drawer is a metal box with a spring and a solenoid. The solenoid needs a brief burst of 12V or 24V to retract the latch. That is genuinely all it does — there is no processor inside and nothing to pair with.
Supplying that voltage requires a device with a suitable power supply and an output circuit. A tablet has neither. A receipt printer has both, which is why the drawer-kick port lives on the printer and has done for decades. The chain is:
StoreHub → network → receipt printer → 12V or 24V pulse → RJ11 → solenoid → drawer opens
The wiring detail, command variants and voltage behaviour are covered in our cash drawer wiring guide — identical regardless of POS software. What follows is what changes when the POS is a tablet on a network.
The tablet-specific risk: no network, no cash
On a Windows POS with a USB printer, the printer is physically attached. If the computer is on, the printer is reachable.
On a tablet POS with a network printer, there is a network in the middle of the chain — and that means a Wi-Fi failure stops your cash drawer opening, not just your receipts printing.
This surprises people at the worst moment. A router reboot, an access point dropping out, or the printer's IP address changing after a power cut all produce the same symptom: a customer paying cash and a drawer that will not open.
What to do about it
- Give the printer a fixed IP address. A DHCP reservation in the router, or a static address on the printer. This removes the most common cause outright.
- Use LAN rather than Wi-Fi where you can. A cable does not drop out, and the printer is often in a metal-shrouded counter where wireless is weakest.
- Put the router on the same backup power as the till. A UPS that keeps the tablet running while the router dies has not helped you.
- Make sure staff know where the drawer key is and how to use the manual release. This is the actual contingency plan, and it costs nothing.
That last point is the one people skip. Every electronic drawer has a physical key lock with a manual open position. It is the difference between a five-minute inconvenience and turning cash customers away.
One drawer per till
Tablet POS makes it easy to add a second till — another tablet, and you are trading. That ease is exactly why this needs saying: a second till taking cash needs a second drawer.
Cash accountability works by matching what is physically in a drawer against what one till recorded. Two staff on two tablets sharing one drawer destroys that. When the count is short at close, there is no way to establish where it went.
It also runs into the hardware reality: the drawer is wired to one printer. If both tablets print to that printer, both can open the drawer — which is technically convenient and exactly the arrangement you should avoid.
| Setup | Printers | Drawers |
|---|---|---|
| Single counter | 1 | 1 |
| Two tills, both taking cash | 2 | 2 |
| Two tills, one card-only | 2 | 1 (on the cash till) |
| Counter + kitchen printer | 2 | 1 (counter only) |
When there is no receipt printer at all
Increasingly common with tablet POS — digital receipts by email or messaging, no paper at the counter. But cash still needs a drawer, and with no printer there is nothing to fire the pulse.
For this case the drawer needs its own interface. Our NBCD-460 is available with optional USB or 9-pin RS-232 so it can be triggered directly rather than through a printer.
Decide this before ordering. An interface cannot be retro-fitted on site, and discovering you need one after a container has arrived is an expensive lesson. If you are going paperless but still taking cash, say so when you enquire.
Voltage matching
Drawer solenoids are built for 12V or 24V and printers output one or the other. A mismatch does not fail cleanly: a 24V drawer on a 12V printer may open when nearly empty and refuse when full of change, because the spring has more weight to move. That intermittent behaviour reads as a loose cable and wastes an hour of looking in the wrong place.
Both our drawers are available in either voltage — a build option, not a different product, same price. Tell us the receipt printer model and we will ship the right one.
NETBYE cash drawers
| Model | Style | Width | Voltage | Interfaces |
|---|---|---|---|---|
| NBCD-410 | Standard, metal | 410mm | 12V or 24V | RJ11 |
| NBCD-460 | Flip top | 460mm | 12V or 24V | RJ11 / RJ12, optional RS-232 and USB |
Both work with any receipt printer that has a drawer-kick port — ours or anyone else's. See the full range of cash drawers, and our receipt printers if you are specifying both together.
Frequently asked questions
Is there a Bluetooth cash drawer?
Not in any form worth buying. A drawer needs a power supply to fire its solenoid; the receipt printer provides it. If you have no printer, use a drawer with a USB or serial interface instead.
The drawer will not open and the receipt did not print either.
Network problem, not a drawer problem. The printer is unreachable, so neither the receipt nor the drawer command is arriving. Check the printer's IP address and the Wi-Fi.
The receipt printed but the drawer did not open.
Different problem. The command reached the printer, so suspect voltage mismatch, the cable, or the drawer's key lock. Our wiring guide covers the diagnosis.
Can I open the drawer without making a sale?
Yes, through the POS — and this is worth restricting to supervisors. Whether StoreHub logs it is worth confirming with them; an unrecorded no-sale is exactly the event you will want a record of.
What happens if the Wi-Fi goes down mid-service?
The drawer will not open electronically. Use the manual key. Make sure staff know where it is before opening day, not on the day.
What size drawer should I order?
410mm suits most counters. Consider the flip top where there is no room to pull a drawer fully out, or if you handle several currencies and want more compartments.
A note on this guide. The wiring, voltage behaviour and failure modes above are hardware facts we know from the products we supply and they hold for any POS. The network-dependency points follow from how tablet POS systems reach a printer, described in general terms; whether StoreHub logs no-sale events is a question for StoreHub. If something here did not match your installation, tell us and we will correct this page. We would rather publish something accurate than something impressive.
Get pricing
NETBYE supplies distributors, system integrators and retailers across Southeast Asia and worldwide. Our drawers are built by our partner factories in Shenzhen and sold under our own model range — we handle specification, quality control and support, so you deal with one supplier rather than several factories. Direct wholesale pricing, low MOQ on first orders, and OEM/ODM covering branding, drawer layout and note/coin tray configuration.
Tell us which models, what quantity, which country, how many cash tills and the receipt printer you are pairing with — or that you have no printer at all — and you will get an accurate quote in one reply. Request a quote.
Related guides
These guides form a set. If you are specifying a complete till, the other hardware for StoreHub POS is covered here:
And if you are comparing across POS software, the same hardware for other systems: