The 128-GB capacity of the optional HXR-FMU128 provides continuous recording for approximately 11 hours in the highest FX 24-Mbps mode (21-Mbps video data, 3Mbps audio and other data). Despite its huge capacity, the HXR-FMU128 integrates neatly with the HXR-NX5 - attaching directly to the back of the unit.
* HXR-FMU128 formatted by a 50i (60i) camcorder cannot be used by a 60i (50i) camcorder. Camcorder must be rebooted if unit is attached when power is ON.