{"product_id":"darwinfpv-cement-ultra-durable-f7-100a-waterproof-stack","title":"DarwinFPV Cement Ultra Durable Waterproof Stack F4\/F7 + 100A ESC, IP67, 3-8S, 30.5x30.5mm","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\u003cp\u003eDarwinFPV “Cement” Ultra Durable Waterproof Stack combines an F4 or F7 flight controller with a 100A 4-in-1 ESC, designed for improved reliability in dust, rain, snow, and other harsh flying environments. The stack uses a glue-filled, impact-resistant waterproof treatment, removes easy-to-loosen direct socket interfaces, and integrates multiple hardware protection circuits while keeping a standard 30.5 x 30.5 mm mounting pattern.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eIP67 dustproof and waterproof\u003c\/strong\u003e: rated for immersion in \u003cstrong\u003e0.5 m\u003c\/strong\u003e water depth for \u003cstrong\u003e30 minutes\u003c\/strong\u003e without damage.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMultiple protections\u003c\/strong\u003e: soft start protection, reverse polarity protection, short circuit protection, and over temperature protection.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOptional gyroscope\u003c\/strong\u003e: \u003cstrong\u003eMPU6000\u003c\/strong\u003e or \u003cstrong\u003eICM42688\u003c\/strong\u003e (as specified for the FC).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eESC “sandwich” stacking scheme\u003c\/strong\u003e: greater overcurrent capability, stronger heat dissipation, and higher space utilization.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e128KHz dynamic PWM output\u003c\/strong\u003e (ESC supports 16–128KHz PWM switching frequency; dynamic\/automatic adjustment).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOnboard black box\u003c\/strong\u003e: \u003cstrong\u003e4G\u003c\/strong\u003e (F7 FC) \/ \u003cstrong\u003e16M\u003c\/strong\u003e (F4 FC). (Manufacturer notes the 4G black box can continuously record nearly 8,000 flight data entries.)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOnboard Pit Switch module\u003c\/strong\u003e (exclusive to \u003cstrong\u003eF7\u003c\/strong\u003e flight controller): VTX can be turned on\/off through remote control to help prevent VTX overheating during parameter adjustment.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOnboard multi-level LED indicator lights\u003c\/strong\u003e for quick inspection of flight controller operation status.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eComponent callouts (ESC)\u003c\/strong\u003e: Toshiba high quality MOS, Murata high temperature resistant ceramic capacitors, Panasonic high-frequency low resistance electrolytic capacitors, American DIODES TVS protection diode; TG180+ via plug copper paste + 3oz copper thickness + 6-layer HDI PCB.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eF7 computing note (manufacturer-stated)\u003c\/strong\u003e: “216MHz F7 main control chip”; supports enabling dual 8K refresh rate of gyroscope PID at the same time; bi-directional DShot600 with lower CPU usage.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ch3\u003eStack \/ Mounting\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput voltage\u003c\/td\u003e\n\u003ctd\u003e3-8S Lipo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting dimensions\u003c\/td\u003e\n\u003ctd\u003e30.5 x 30.5 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e39.5 x 39.5 x 4 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e44.2 g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch3\u003eFlight Controller (FC)\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eDarwinFPV “Cement” Ultra Durable F4 Waterproof FC \/ DarwinFPV “Cement” Ultra Durable F7 Waterproof FC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMain control chip\u003c\/td\u003e\n\u003ctd\u003eAT32F435 (F4) \/ STM32F722 (F7)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBlack box\u003c\/td\u003e\n\u003ctd\u003e16M (F4) \/ 4G (F7)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMotor output port\u003c\/td\u003e\n\u003ctd\u003eM1-M4 (F4) \/ M1-M8 (F7)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSerial port\u003c\/td\u003e\n\u003ctd\u003eUART1, UART2, UART3, UART5, UART7 (F4) \/ UART1, UART2, UART3, UART4, UART6 (F7)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFirmware\u003c\/td\u003e\n\u003ctd\u003eDARWINF435 (BetaFlight) (F4) \/ DARWINF722HDV2 (BetaFlight) (F7)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUSER\u003c\/td\u003e\n\u003ctd\u003e\/ (F4) \/ 1x USER2 (PC9) (F7)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGyro\u003c\/td\u003e\n\u003ctd\u003eMPU6000 \/ ICM42688\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOSD\u003c\/td\u003e\n\u003ctd\u003eAT7456E\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput voltage\u003c\/td\u003e\n\u003ctd\u003e3-8S Lipo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBEC\u003c\/td\u003e\n\u003ctd\u003e10V\/3A, 5V\/3A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUSB interface\u003c\/td\u003e\n\u003ctd\u003e1x Waterproof USB Type-C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eI2C\u003c\/td\u003e\n\u003ctd\u003e1x I2C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRGB\u003c\/td\u003e\n\u003ctd\u003e4 x RGB soldering pads\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBuzzer\u003c\/td\u003e\n\u003ctd\u003e1 x BB-\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting dimensions\u003c\/td\u003e\n\u003ctd\u003e30.5 x 30.5 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e39.5 mm x 39.5 mm x 4 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e10.1 g ± 0.2 g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch3\u003eESC (4-in-1)\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eDarwinFPV “Cement” Ultra Durable 100A ESC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMain control chip\u003c\/td\u003e\n\u003ctd\u003eAT32F421 (32-bit 120MHz, 128KHz dynamic PWM)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput voltage\u003c\/td\u003e\n\u003ctd\u003e3-8S Lipo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eContinuous current\u003c\/td\u003e\n\u003ctd\u003e4 x 100A (requires continuous operation at 100A, necessitating a water-cooled heat dissipation environment)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePeak current\u003c\/td\u003e\n\u003ctd\u003e4 x 120A (5S)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupport throttle protocol\u003c\/td\u003e\n\u003ctd\u003eDshot150\/300\/600\/1200, MultiShot, Oneshot42, Oneshot125\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGalvanometer\u003c\/td\u003e\n\u003ctd\u003eSupport (Current Meter Scale=125)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTelemetry\u003c\/td\u003e\n\u003ctd\u003eSupport\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFirmware\u003c\/td\u003e\n\u003ctd\u003eDARWIN_F4_60 (BLHeli_32)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower cable\u003c\/td\u003e\n\u003ctd\u003e#14AWG \/ 120mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting dimensions\u003c\/td\u003e\n\u003ctd\u003e30.5 x 30.5 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e36.8 mm x 42.5 mm x 7.5 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e23.0 g ± 0.2 g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch2\u003eWhat’s Included\u003c\/h2\u003e\u003cp\u003eItems vary by the selected option (FC \/ ESC \/ Stack):\u003c\/p\u003e\u003ch3\u003eFC\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e1 x DarwinFPV “Cement” Ultra Durable F7 Waterproof Flight Controller\u003c\/li\u003e\n\u003cli\u003e1 x 30mm ESC cable (8P)\u003c\/li\u003e\n\u003cli\u003e1 x 65mm analog VTX cable (4P)\u003c\/li\u003e\n\u003cli\u003e1 x 65mm GPS cable (6P)\u003c\/li\u003e\n\u003cli\u003e1 x 65mm receiver cable (4P)\u003c\/li\u003e\n\u003cli\u003e1 x 65mm HD VTX cable (6P)\u003c\/li\u003e\n\u003cli\u003e4 x M3*4.5mm shock-absorbing balls (installed on FC)\u003c\/li\u003e\n\u003cli\u003e1 x sticker\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eESC\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e1 x DarwinFPV “Cement” Ultra Durable 100A Waterproof ESC\u003c\/li\u003e\n\u003cli\u003e1 x 30mm ESC cable (8P)\u003c\/li\u003e\n\u003cli\u003e1 x XT60\u003c\/li\u003e\n\u003cli\u003e1 x 14AWMG power cable (length 120mm, soldered to the ESC)\u003c\/li\u003e\n\u003cli\u003e1 x 35V\/1000uF electrolytic capacitor (soldered to the ESC)\u003c\/li\u003e\n\u003cli\u003e4 x M3*6.6mm shock-absorbing balls (installed on the ESC)\u003c\/li\u003e\n\u003cli\u003e1 x sticker\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eStack\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e1 x DarwinFPV “Cement” Ultra Durable F7-100A Waterproof Stack\u003c\/li\u003e\n\u003cli\u003e1 x 30mm ESC cable (8P)\u003c\/li\u003e\n\u003cli\u003e1 x 65mm analog VTX cable (4P)\u003c\/li\u003e\n\u003cli\u003e1 x 65mm GPS cable (6P)\u003c\/li\u003e\n\u003cli\u003e1 x 65mm receiver cable (4P)\u003c\/li\u003e\n\u003cli\u003e1 x 65mm HD VTX cable (6P)\u003c\/li\u003e\n\u003cli\u003e1 x XT60\u003c\/li\u003e\n\u003cli\u003e1 x 14AWMG power cable (length 120mm, soldered to the ESC)\u003c\/li\u003e\n\u003cli\u003e1 x 35V\/1000uF electrolytic capacitor (soldered to the ESC)\u003c\/li\u003e\n\u003cli\u003e4 x M3*4.5mm shock-absorbing balls (installed on FC)\u003c\/li\u003e\n\u003cli\u003e4 x M3*6.6mm shock-absorbing balls (installed on the ESC)\u003c\/li\u003e\n\u003cli\u003e4 x M3*25 hexagon socket head black 304 screws (installed on the stack)\u003c\/li\u003e\n\u003cli\u003e4 x M3 nylon nuts\u003c\/li\u003e\n\u003cli\u003e1 x sticker\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eManuals\u003c\/h2\u003e\u003cp\u003eESC configuration note: since BLHeli32 configuration is closed due to regulatory issues, if parameter adjustment is required, download: \u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0585\/5841\/5023\/files\/BLHeliSuite32TestActivator_31.10.0.1.zip?v=1737527550\"\u003eBLHeliSuite32TestActivator_31.10.0.1\u003c\/a\u003e.\u003c\/p\u003e\u003ch2\u003eApplications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eFPV drone builds needing an IP67-rated waterproof\/dustproof electronics stack\u003c\/li\u003e\n\u003cli\u003eFreestyle\/cinematic flying where exposure to water splashes, wet ground, dust, or snow is expected\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eFor compatibility questions or after-sales support, contact \u003ca href=\"https:\/\/rcdrone.top\/\"\u003ehttps:\/\/rcdrone.top\/\u003c\/a\u003e or email \u003ca href=\"mailto:support@rcdrone.top\"\u003esupport@rcdrone.top\u003c\/a\u003e.\u003c\/p\u003e\u003ch2 id=\"details\"\u003eDetails\u003c\/h2\u003e\u003cdiv class=\"details-gallery\"\u003e\n\u003cimg alt=\"DarwinFPV Cement ultra durable waterproof stack with F7 flight controller and 100A 4-in-1 ESC (30.5x30.5mm)\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/DarwinFPV-Cement-Ultra-Durable-F4-F7-100A-Waterproof-Stack.jpg?v=1778039581\"\u003e\u003cp\u003eDarwinFPV “Cement” waterproof stack pairs an F4\/F7 flight controller with a 100A 4‑in‑1 ESC for harsh-weather FPV builds.\u003c\/p\u003e\n\u003cimg alt=\"IP67 dustproof and waterproof rating graphic for DarwinFPV Cement F7 100A stack, water immersion protection callout\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/DarwinFPV-Cement-Ultra-Durable-F4-F7-100A-Waterproof-Stack_632c5147-42d8-49a3-aeb1-0b9719e11f53.jpg?v=1778039589\"\u003e\u003cp\u003eIP67-rated protection is built for flying in rain, snow, and dusty environments, with immersion resistance up to 0.5 m for 30 minutes.\u003c\/p\u003e\n\u003cimg alt=\"ESC component callouts on DarwinFPV Cement stack highlighting MOSFETs, capacitors, and TVS protection diode\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/DarwinFPV-Cement-Ultra-Durable-F4-F7-100A-Waterproof-Stack_0140fc15-aff4-4f47-bc97-9fdffffca349.jpg?v=1778039596\"\u003e\u003cp\u003ePremium ESC components and protective design are aimed at improving reliability under high load and electrical noise.\u003c\/p\u003e\n\u003cimg alt=\"Flight controller performance comparison chart highlighting 216MHz F7 main control chip and supported PID refresh rates\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/DarwinFPV-Cement-Ultra-Durable-F4-F7-100A-Waterproof-Stack_5ce42b19-4737-4aa0-82a3-c828a0b520df.jpg?v=1778039603\"\u003e\u003cimg alt=\"Multiple protections graphic for the waterproof flight controller: soft start, reverse polarity, short circuit, over-temperature\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/DarwinFPV-Cement-Ultra-Durable-F4-F7-100A-Waterproof-Stack_9cd1471d-de78-457f-8505-a2634a07bc9e.jpg?v=1778039610\"\u003e\u003cp\u003eLayered hardware protections help reduce the risk of damage from wiring mistakes, shorts, or heat during demanding flights.\u003c\/p\u003e\n\u003cimg alt=\"Sandwich stacking scheme diagram for ESC and FC showing busbar layout and heat dissipation path for overcurrent handling\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/DarwinFPV-Cement-Ultra-Durable-F4-F7-100A-Waterproof-Stack_842db4c4-b569-4203-b42e-1a4674349603.jpg?v=1778039616\"\u003e\u003cp\u003eA “sandwich” stack layout is designed to improve heat dissipation and overcurrent capability while keeping a standard mounting pattern.\u003c\/p\u003e\n\u003cimg alt=\"128kHz PWM dynamic output graphic for 32-bit ESC showing adjustable switching frequency and signal waveform\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/DarwinFPV-Cement-Ultra-Durable-Waterproof-Stack-F4F7--100A_eba01496-b8f0-4fb1-89a4-29c4adb7c9f7.webp?v=1778040026\"\u003e\u003cimg alt=\"Optional gyro choices graphic showing MPU6000 and ICM42688 options on the DarwinFPV Cement flight controller\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/DarwinFPV-Cement-Ultra-Durable-F4-F7-100A-Waterproof-Stack_a051f54e-ba2c-4783-840a-5ce9943b3d93.jpg?v=1778039629\"\u003e\u003cimg alt=\"Onboard black box storage callout with close-up of memory area on the flight controller (4G on F7, 16M on F4)\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/DarwinFPV-Cement-Ultra-Durable-F4-F7-100A-Waterproof-Stack_6b407522-ef0f-4574-9d97-43585080b765.jpg?v=1778039636\"\u003e\u003cp\u003eOnboard black box memory supports flight log recording without relying on external modules.\u003c\/p\u003e\n\u003cimg alt=\"Onboard pit switch module location on DarwinFPV Cement F7 flight controller for remote VTX on\/off control\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/DarwinFPV-Cement-Ultra-Durable-F4-F7-100A-Waterproof-Stack_9e6548c1-5fc3-45e7-a24d-aa7857ccd3c5.jpg?v=1778039642\"\u003e\u003cp\u003eExclusive to the F7 version, the onboard Pit Switch lets you turn VTX output on\/off from the radio to help manage heat on the bench.\u003c\/p\u003e\n\u003cimg alt=\"Multi-level LED status indicator strip on the flight controller for quick operation and setup checks\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/DarwinFPV-Cement-Ultra-Durable-F4-F7-100A-Waterproof-Stack_a606edd4-2972-4dbc-b99e-49da7b352e9a.jpg?v=1778039650\"\u003e\u003cimg alt=\"Discount redemption and accident coverage terms graphic listing 1-year validity, two uses, and supported incident types\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/DarwinFPV-Cement-Ultra-Durable-F4-F7-100A-Waterproof-Stack_25507c94-d06f-4892-a3b2-6b06a99152f1.jpg?v=1778039658\"\u003e\u003cimg alt=\"Specifications table for DarwinFPV Cement waterproof stack and 100A ESC listing voltage, mounting size, MCU, UARTs, and features\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/DarwinFPV-Cement-Ultra-Durable-F4-F7-100A-Waterproof-Stack_c6b08ac6-1c21-4cc1-8c63-8a4f023c39a9.jpg?v=1778039674\"\u003e\u003cp\u003eFull specs at a glance, including 3–8S input, 30.5×30.5 mm mounting, and key FC\/ESC feature differences between F4 and F7.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"DarwinFPV","offers":[{"title":"F7 Cement Stack(ICM42688)","offer_id":52563466977504,"sku":"DarwinFPV_Cement_Ultra_Durable_F4_2f07b6-1","price":205.19,"currency_code":"USD","in_stock":true},{"title":"F7 Cement Stack(MPU6000)","offer_id":52563467043040,"sku":"DarwinFPV_Cement_Ultra_Durable_F4_2f07b6-3","price":247.19,"currency_code":"USD","in_stock":true},{"title":"F4 Cement Stack(ICM42688)","offer_id":52563467108576,"sku":"DarwinFPV_Cement_Ultra_Durable_F4_2f07b6-5","price":177.19,"currency_code":"USD","in_stock":true},{"title":"F4 Cement Stack(MPU6000)","offer_id":52563467174112,"sku":"DarwinFPV_Cement_Ultra_Durable_F4_2f07b6-7","price":205.19,"currency_code":"USD","in_stock":true},{"title":"Only  Cement ESC","offer_id":52563467239648,"sku":"DarwinFPV_Cement_Ultra_Durable_F4_2f07b6-9","price":139.39,"currency_code":"USD","in_stock":true},{"title":"Only F7 Cement FC(ICM42688)","offer_id":52563467305184,"sku":"DarwinFPV_Cement_Ultra_Durable_F4_2f07b6-11","price":90.39,"currency_code":"USD","in_stock":true},{"title":"Only  F7 Cement FC(MPU6000)","offer_id":52563467370720,"sku":"DarwinFPV_Cement_Ultra_Durable_F4_2f07b6-13","price":132.39,"currency_code":"USD","in_stock":true},{"title":"Only F4 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