Futaba 8ch Rx 2.4 G Hz FASST (FS/HS Mode) (P-R6008HS/2-4G) This 8-channel receiver from Futaba differs from all previous receivers because it can run on 2 modes. Theres Normal Mode", where the receiver works like all previous Futaba 2.4 GHz receivers, but theres also a High Speed setting, with high resolution for the demanding modeller. Normal Mode accepts any type of servos or peripherals, as the output frame rate is 14ms. High Speed Mode only accepts digital servos (including BLS series) in channels 1 to 6, & most peripheral equipment such as the gyros or brushless ESCs. The frame rate of the outputs is 7ms (twice the standard speed). The outputs for other channels allow the use of any type of servo, as the frame rate of these outputs are still 14ms on the High Speed Mode. Specification: Channels: 8 Weight: 0.5oz (13.5g) Dimensions: 1.8 x 0.9 x 0.5" (45 x 22 x 13mm) Power Requirement: 4.8 or 6.0V battery, or regulated output from ESC