--- product_id: 145186827 title: "Spektrum SRXL2 DSMX Serial Micro Receiver, SPM4650" price: "S/.239" currency: PEN in_stock: true reviews_count: 13 url: https://www.desertcart.pe/products/145186827-spektrum-srxl2-dsmx-serial-micro-receiver-spm4650 store_origin: PE region: Peru --- # SRXL2 DSMX protocol for enhanced telemetry 5V power support for stable performance Compact micro size for sleek builds Spektrum SRXL2 DSMX Serial Micro Receiver, SPM4650 **Price:** S/.239 **Availability:** ✅ In Stock ## Summary > 🚀 Elevate your micro quad game with Spektrum’s powerhouse receiver! ## Quick Answers - **What is this?** Spektrum SRXL2 DSMX Serial Micro Receiver, SPM4650 - **How much does it cost?** S/.239 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.pe](https://www.desertcart.pe/products/145186827-spektrum-srxl2-dsmx-serial-micro-receiver-spm4650) ## Best For - Customers looking for quality international products ## Why This Product - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Compact Yet Mighty:** Ultra-small micro receiver designed to fit seamlessly into tight builds without compromising range or signal quality. - • **Power Up with 5V Stability:** Runs on 3.3 to 8 volts, ensuring robust and reliable power delivery for your micro quad setup. - • **Next-Level Telemetry Control:** Leverage SRXL2 DSMX protocol to adjust Betaflight settings directly from your Spektrum Gen 2 radio—no more OSD hassle. - • **Plug-and-Play with Smart Bind:** Integrated bind button eliminates the need for bind plugs or grounding, simplifying setup and saving time. - • **Engineered for the Spektrum Loyalist:** Optimized for pilots who demand precision and seamless integration with Spektrum’s ecosystem—join the elite few. ## Overview The Spektrum SRXL2 DSMX Serial Micro Receiver (SPM4650) is a compact, high-performance receiver designed for mini quad pilots who demand reliable 5V power support, advanced telemetry via SRXL2 protocol, and seamless integration with Spektrum Gen 2 radios. Featuring a built-in bind button and compatibility with Betaflight 4.1+, it offers enhanced range and control in a sleek micro form factor favored by serious Spektrum enthusiasts. ## Description Drivers and pilots enjoy even more Smart advantages when using Spektrum Smart G2 50C LiPo batteries. New "Generation 2" features make these powerful LiPo packs even simpler and safer to use together with your Smart charger. Review: Finally, Spektrum Steps UP with a 5V Receiver - Coming from fixed-wing aircraft, I've owned a DX9 for quite some time and I wasn't yet ready to jump on the FrSky/Taranis bandwagon just to fly drones. My first quad was a Blade Torrent (great for learning). My recent second, a Diatone GT R349 (great for ripping). I installed this receiver onto the R349 and it is absolutely fantastic (great range, no noise). I do not recommend this to those who are not technically inclined; nor to those who aren't familiar with fine soldering work. It requires flashing a forked version of Betaflight (v4.0.3 as of this writing) onto the flight controller and soldering the output wires to the flight controller's 5V, GND, and (signal to) TX UART connection. You will be setting up Betaflight from scratch (or importing from a stock 4.0 setup and then tuning). Intimidated yet? Search the RCGroups threads for SPM4650 and get educated. It's worth it though -- if you own any Spektrum Gen 2 radio (and flash it with the latest firmware), you'll get the ability to change your Betaflight settings right in the pit via the radio's telemetry screens (thank you Spektrum devs!) -- an alternative from setting things via OSD (of course, your drone hardware needs to support Smart Audio/IRC Tramp). To sum up, it's a small, powerful, feature-rich, telemetry receiver we few die-hard Spektrum fans (the few, the proud) can now utilize for our micro builds. Better late than never! Review: This is the best Spektrum receiver for fpv/drones. - First off if you fly fixed wing aircraft these receiver may not be what you're looking for. If on the other hand you are looking to build a multi-rotor of almost any size from whoop size all the way up to beast this receiver fills that void. the SPM4650 isn't just a smaller spm4649/8. It has gone one or maybe two levels beyond. The stand out features to me are weight and features. This is the smallest full range high speed receiver that Spektrum users not wanting to invest in Crossfire a good place to be. I've had several flights using this so far on a 5in freestyle quad and subjectively this feels to me to be the most responsive quad I've ever flown that didn't run crossfire. Great job please keep supporting this product. ## Features - Spektrum Srxl2 Dsmx Serial Micro Receiver, Spm4650 - Brand: Spektrum - Package Height: 1.4 Inches - Item Package Weight: 0.05 Pounds ## Technical Specifications | Specification | Value | |---------------|-------| | Best Sellers Rank | #268,038 in Toys & Games ( See Top 100 in Toys & Games ) #249 in RC Radio Receivers | | Customer Reviews | 4.6 out of 5 stars 253 Reviews | ## Images ![Spektrum SRXL2 DSMX Serial Micro Receiver, SPM4650 - Image 1](https://m.media-amazon.com/images/I/61dBAEdxecL.jpg) ![Spektrum SRXL2 DSMX Serial Micro Receiver, SPM4650 - Image 2](https://m.media-amazon.com/images/I/71EcMSSoplL.jpg) ![Spektrum SRXL2 DSMX Serial Micro Receiver, SPM4650 - Image 3](https://m.media-amazon.com/images/I/71EH34qghcL.jpg) ![Spektrum SRXL2 DSMX Serial Micro Receiver, SPM4650 - Image 4](https://m.media-amazon.com/images/I/81T3JSdRcrL.jpg) ![Spektrum SRXL2 DSMX Serial Micro Receiver, SPM4650 - Image 5](https://m.media-amazon.com/images/I/816myua7C0L.jpg) ## Questions & Answers **Q: What do i have to use with it to be able to connect my servos with jr plugs??** A: You can not connect servos directly to this receiver. You need to use it with a flight controller. **Q: How do i hook this up to matek f411-wing? i don't see anything labeled tx uart** A: Don't look for pads specifically labeled "TX Uart". Many flight controllers will have multiple UARTs available and each UART consists of two pads... a TX pad and an RX pad. Flight controllers will typically label the pads associated with UART1 as TX1 and RX1. The pads associated with UART2 will be labeled as TX2 and RX2. If you are trying to connect this to UART1, you will need to solder the receiver's signal wire to a TX1 pad. However, your flight controller's firmware will also need to support the SRXL2 protocol. **Q: Is tbe signal ppm or subs when hooking to fc??** A: Neither. It is srxl2 protocol developed by spektrum and supported in newer versions of betaflight. **Q: I have a thrust riot. Recommend is 1024 or 2048 receiver. Cant find. What is recommended to replace 1024 or 2048?** A: Thats spektrum receiver is a 2048 receiver...buy that and setup in betaflight. They work great....i have them in 2 quads. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Finally, Spektrum Steps UP with a 5V Receiver *by C***S on September 17, 2019* Coming from fixed-wing aircraft, I've owned a DX9 for quite some time and I wasn't yet ready to jump on the FrSky/Taranis bandwagon just to fly drones. My first quad was a Blade Torrent (great for learning). My recent second, a Diatone GT R349 (great for ripping). I installed this receiver onto the R349 and it is absolutely fantastic (great range, no noise). I do not recommend this to those who are not technically inclined; nor to those who aren't familiar with fine soldering work. It requires flashing a forked version of Betaflight (v4.0.3 as of this writing) onto the flight controller and soldering the output wires to the flight controller's 5V, GND, and (signal to) TX UART connection. You will be setting up Betaflight from scratch (or importing from a stock 4.0 setup and then tuning). Intimidated yet? Search the RCGroups threads for SPM4650 and get educated. It's worth it though -- if you own any Spektrum Gen 2 radio (and flash it with the latest firmware), you'll get the ability to change your Betaflight settings right in the pit via the radio's telemetry screens (thank you Spektrum devs!) -- an alternative from setting things via OSD (of course, your drone hardware needs to support Smart Audio/IRC Tramp). To sum up, it's a small, powerful, feature-rich, telemetry receiver we few die-hard Spektrum fans (the few, the proud) can now utilize for our micro builds. Better late than never! ### ⭐⭐⭐⭐⭐ This is the best Spektrum receiver for fpv/drones. *by J***L on August 9, 2019* First off if you fly fixed wing aircraft these receiver may not be what you're looking for. If on the other hand you are looking to build a multi-rotor of almost any size from whoop size all the way up to beast this receiver fills that void. the SPM4650 isn't just a smaller spm4649/8. It has gone one or maybe two levels beyond. The stand out features to me are weight and features. This is the smallest full range high speed receiver that Spektrum users not wanting to invest in Crossfire a good place to be. I've had several flights using this so far on a 5in freestyle quad and subjectively this feels to me to be the most responsive quad I've ever flown that didn't run crossfire. Great job please keep supporting this product. ### ⭐⭐⭐⭐ Works great on current versions of Betaflight *by J***E on November 20, 2020* As several reviews have pointed out, you may need to upgrade your flight controller's firmware before you can use it. So buyers should verify their flight controllers can support the versions of betaflight they need before buying it. Betaflight did not add support for SRXL2 in official releases until v4.1 and I believe support was not incorporated into the configurator until even later (which meant you had use the command line interface to enable the options). Betaflight v4.2 and Betaflight Configurator 10.7.0 appear to fully support this receiver without problems. So far this receiver has worked well for me. I have it attached to a Diatone Mamba F405 flight controller that currently uses Betaflight 4.2. The range and signal strength seem to be good, although I will admit that I haven't really tested the range very much as I have been flying fairly close range (a couple hundred yards at most) in open areas. This receiver allows the flight controller to get useful information like RSSI data and allows my FC to send telemetry data back to my radio (which is nice if I want to set my radio up for things like voltage alarms). I have 4 minor things that kept me from giving this a 5/5 star rating. 1) The included wires use cheap, stiff, plastic coating instead of silicone wire insulation. This is pretty minor, in my opinion, but it does make the wires feel cheap and they aren't as flexible as silicone wires, which can make wire management a bit more annoying in a small quad. 2) Spektrum lets you register their products with your account on their website for things like updates and warranties. But to register this receiver, you need the serial number. The only way to get that is to buy ANOTHER spektrum part that lets you connect the receiver to a computer to get the SN and update its firmware (assuming you soldered the plug to the receiver, and didn't just solder it directly to your flight controller). I am not buying that, so I can't register it. 3) Spektrum made some tutorial videos on Youtube when this was first released. That is a great idea and that video contain some useful information. However it also contains a lot of dated information that can mislead users. For example, when this product was released, official betaflight builds didn't support this receiver and spektrum, temporarily, had their own Betaflight builds. The video tells users to use those custom builds to update their flight controller. That would be a bad idea now since standard Betaflight builds fully support it. The videos should be updated to reflect current data and eliminate misinformation. 4) The price is a bit much for what it is. This is a good product, but there is room for improvement. ## Frequently Bought Together - Spektrum SRXL2 DSMX Serial Micro Receiver, SPM4650 - SpeedyBee TX Ultra FPV VTX: TX1600 FPV Video Transmitter with Max 1.6W 7g 20 * 20mm Mounting Hole IRC Tramp & Pit Supported with MMCX Antenna for Analog FPV - FPV Camera RunCam Phoenix 2 SE - Special Edition Micro Drone Camera With lens hood 5.8ghz FOV160°Global WDR 8.6g for RC FPV Car Plane Racing Drone --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.pe/products/145186827-spektrum-srxl2-dsmx-serial-micro-receiver-spm4650](https://www.desertcart.pe/products/145186827-spektrum-srxl2-dsmx-serial-micro-receiver-spm4650) --- *Product available on Desertcart Peru* *Store origin: PE* *Last updated: 2026-10-01*