Most mass spectrometers analyze molecules sequentially, only a few at a time, which is slow and insensitive to rare molecules.[1][2][3] A new prototype called MultiQ-IT can cool, capture, filter and redirect more than a billion ions simultaneously.[1][4] This system has 486 ports and can hold up to ten billion rounds, about a thousand times more than standard traps.[2] MultiQ-IT divides a single stream of ions into thousands of parallel processed parts.[2] Thanks to electrical barriers, it filters common interfering molecules and preserves rare biologically significant ones.[2] It achieves a 100-fold improvement in signal-to-noise ratio, revealing previously unseen proteins.[2] A study of this prototype was published in the journal Science Advances.[3] The results provide a blueprint for faster and more sensitive devices.[3]