The XB-200 is a block up-down converter that greatly expands the bladeRF’s usable frequency range down, making the platform suitable for HF/VHF applications. [Compatible only with bladeRF 1.0 x40 and x115]
The XB-300 is a combination 2.4GHz power amplifier and wideband LNA. [Compatible only with bladeRF 1.0 x40 and x115]
The XB-100 expansion board turns the bladeRF into an FPGA development board by breaking out all of the expansion header GPIO pins to LEDs, push buttons, and 0.1″ headers.