COVID-19 Update: Flying Tech is open and shipping daily, however our phone support is limited so please email us if possible. Please note shipment times may take longer than normal as postal services are operating with fewer staff.
Thanks to all of our customers for their support at this difficult time and stay safe.
We ship worldwide - Same day shipping on all orders placed before 1pm - FREE delivery on UK orders over £99 <1kg*
The FrSky RB-40 is a switchboard module that can operate 3 receivers and dual power inputs to provide you with total peace of mind when flying your models. The RB40 utilises all the trusted attributes of the previous Redundancy Bus series, along with adding new features to meet the needs of an ever-growing range of users.
The upgraded redundancy hub
Previous redundancy bus models offered a dual-power with a dual-receiver design. The RB-40 allows the user to use a triple redundancy by adding a multiplex port (RX3 IN / SBUS Out). You can even mix frequency bands, so for example 2.4GHz ACCESS and the 900MHz R9 System for even greater reliability. Power input is via a set of standard XT60 plugs.
Up to 24 PWM channels with overload protection
The RB-40 supports connecting up to 24 high-voltage servos with overload protection added to each output channel. Eight of the channels (CH1-8) are equipped with current sensors
The diversified sensors
The RB-40 is an extensive sensor module, aside from its built in sensors that can monitor voltage and power consumption, there’s support for FrSky’s Smart Port system for connecting many different telemetry sensors that can help you monitor your flight in great detail. There is also a SD card slot, which can be used as a black box for data logging.
Two Output BECS
The RB-40 supports a voltage input of 11-26V and provides two voltage regulated SBEC outputs DC 5-8.4V via twin XT60 sockets. The output voltages can be adjusted directly from your FrSky transmitter via a LUA-script or via FrSky FreeLink, which makes the setup simple.
Built In Stabiliser
The RB-40 has a built-in gyroscope that supports model stabilising functions, so it can be used as an alternative to using a GR or S series receiver.
NFC Switch & Automatic data logging functions
The non-contact NFC switch is an external device that enables the power to be switched on/off on command without the need to plug/unplug the battery connections. Once power is connected, the black-box function is automatically activated and immediately starts recording the data.
Menu scroll button, LCD screen & CNC case
The RB40 features a display screen that is comparable in size to one found on the X-Lite series radio. Navigating and configuring telemetry data is even more convenient thanks to the scroll button. Even considering all these features while maintaining durability, the RB40 weighs only 260 grams thanks to the hybrid design of carbon fiber and aluminum materials.
- Dual Power & Triple Receiver Guarantee
- High-voltage Servo Supported (Up to 24 PWM servos)
- Overload Protection on Each Channel
- Channel 1 – 8 with Current Detection
- Supports Stabilization Function with Built-in Gyroscope Sensor
- Multiple configuration methods (Lua script and FreeLink)
- Compatible with FrSky S.Port products
- Various S.Port Telemetry Feedbacks (Voltage, Current, Alt, VSpd, Power Consumption, etc.)
- Black Box Data Record Function
- Non-contact NFC Switch Function
- LCD Screen with Menu Scroll Button
- CNC Aluminum & Carbon Fiber Case
- Number of Servo Connector: up to 24
- Operating temperature:-20℃~75℃
- Recommended input voltage range : DC 11~26V
- OUTPUT1&OUTPUT2：SBEC OUTPUT, Continuous Current: 2x30A@5~8.4V
- Dimension: 163.2x100x23.5mm
- Weight: 260g
- 1x FrSky RB-40 Redundancy Hub
- 1x NFC Power Switch
Sorry, we don't currently have any product related advice for this item. For general tips, tutorials and help please check out our Multirotor Beginner's Guide. Alternatively feel free to ask us a question.
COVID-19: We are still shipping out orders daily, but have changed our same day shipping cut-off time to 1PM to help cope with demand. If an order is placed after 1PM we will still do our best to ship same day as our daily postal collection is around 4:15.
Please be aware that deliveries with Royal Mail are taking longer to get through. At the moment we are finding it can range from next day to even up to two weeks, with 3-5 days being typical. So if you choose Royal Mail as a shipping method please be patient, shipments aren’t going missing they are just taking a while to get through the postal service. For fast deliveries we recommend choosing DHL.
All information relating to shipping and delivery is stated here. Should you not find what you are looking for, please contact us.
Shipping costs are calculated once items have been placed in your basket during checkout.
UK Postage: Here at Flying Tech we process orders Monday to Friday and pride ourselves on our quick turnaround of orders. If stocks levels allow, we aim to dispatch orders placed before 4PM the same day with Royal Mail. Our cut off time for courier delivery is earlier; orders must be placed by 1PM for next day delivery with DHL and 1PM for next day delivery with APC. A confirmation email will be sent when your order has been dispatched. If you wish to change your order, please contact us promptly, as we won't be able to make amendments once the order has been shipped.
We are partnered with several delivery companies including Royal Mail, DHL, APC and Parcel Force. If you have a special delivery requirement or would like to arrange a shop collection please contact us. For small low value orders our cheapest delivery service is Royal Mail First Class; this service aims to deliver the next working day including Saturdays and it can be sent recorded for extra peace of mind – please note this is not a guaranteed next day delivery or trackable service.
For a guaranteed next day delivery we recommend Royal Mail Special Delivery or one of our courier delivery options. Royal Mail Special Delivery will arrive by 1PM the next day and for an extra fee can be delivered on Saturdays. APC Overnight offers next day delivery with full tracking and a 2hr time slot pre-delivery text notification. DHL is a good option for larger consignments and remote locations such as Northern Ireland and Isle of Man. All high value orders are fully insured and will likely require a signature on delivery.
FREE shipping in the UK on orders over £99 (this is a signed for service and insured to a maximum of £40). Please note that the offer only applies to orders with a total weight under 1Kg and that a few products are exempt from the offer, such as LiPo batteries.
International Postage: We are based in the UK, but ship to most worldwide destinations. Postage rates are calculated by the weight and shipment location, the price is quoted during the checkout. Low value order can be sent by Air Mail, but are not insured. Higher value, heavy goods will be sent with DHL or an alternative courier. Orders shipped outside the UK may be subject to customs charges. These charges are additional to any delivery costs and will need to be paid by the recipient.
For our international customers who require a rapid delivery we off a DHL Express service. DHL Express offers NEXT DAY delivery to most European destinations and a very fast delivery for countries further afield, generally 2-3 days. For country specific estimated transit times, please refer this download.
We reserve the right to modify, remove or add to any of these services at any time. We endeavour to ship all items as fast as possible. If you would like an alternative shipping arrangement to be made please contact us.