Why does a fightstick have an ethernet port?
Because 1000 Hz USB isn’t fast enough. The ethernet jack, now built into the chip itself, runs a LAN mode we’re targeting at 40,000 Hz, cutting the delay between your press and the game by up to 40x. It’s a target on pre-prototype hardware, and every number goes to inputlag.science before we claim it.
That’s one corner of the most over-engineered fightstick PCB ever designed.
Founding price $150. The price of a Brook Ultimate Plus, at up to 16x the polling.
The Founding 100 lock $150 · $199 after
No payment now · non-binding · founders always pay the lowest
drag to rotate · NOBD-ZERO pre-prototype
Four moats, one board.
Up to 16 kHz USB · USB 3.0
One chip, two RISC-V cores: one keeps your inputs clean while dedicated hardware talks USB High-Speed. 8 kHz standard, up to 16 kHz with the companion, plus a full USB 3.0 SuperSpeed engine on die for headroom. Every open board everyone else runs is stuck at 1000 Hz. This is 8 to 16 times past that wall.
40× faster on LAN
25 microseconds from press to game. The fastest fightstick ever tested still takes about 1,000. That is 975 microseconds sooner, 40 times faster, the equivalent of 40,000 Hz polling. A real Ethernet jack, now built into the chip itself, and a companion app hand your inputs straight to the game, for lower and more consistent latency than USB polling can reach. Ethernet on the die removes the SPI hop the old external network chip added. Theoretical and pre-prototype: real numbers go to inputlag.science before we claim them.
Native retro
Dreamcast is native over Maple Bus, run on the chip’s PIOC protocol engine, with VMU save emulation. No adapter, no dongle. It is native in the open firmware today. The retro jack is Brook-cable ready, and the same console lineup rolls out in firmware.
Which consoles?
Dreamcast is native today. Planned in firmware to match the Brook Retro Board lineup: NES, SNES, N64, GameCube, PC Engine / TG16, PlayStation, PS2, Xbox, PS3, and PC.
Fully open · Sync and Raw
A public fork of GP2040-CE. Read every line and fork it. Run the tunable Sync window that groups your presses, or Raw for full-speed passthrough. You tune it, you own it.
Specs are targets · prototype stage · building in public
Priced like a Brook Ultimate Plus. Built past it.
* Targets on pre-prototype hardware. Every number goes to inputlag.science before we claim it. Brook ships a broader console list today.
Giving back, not walling off: the GP2040-CE-NOBD firmware and NOBD Desktop are open source and free to run on a stick you already own. You never pay us a cent to fix your inputs.
Faster, drawn to scale.
Bar = speed vs 1000 Hz wall
Our target. Over Ethernet, event-driven.
Our target with the NOBD companion. 16 kHz, same board.
Our target out of the box. 8 kHz over USB High-Speed.
The fastest fightstick ever measured. Right on the wall.
The firmware we forked. Stuck at the 1000 Hz USB cap.
A stock PS4 pad.
Slowest on the board.
Every grey bar is a real measurement from inputlag.science , drawn as speed relative to the 1000 Hz wall (1 ms = 1×). The fastest fightstick ever tested (Brook UFB) sits right on that wall, and the open RP2040 boards GP2040-CE runs on are capped there too. Our targets aim 8× past it on USB out of the box, 16× with the companion, and 40× on LAN.
* NOBD figures are design targets on pre-prototype hardware, not yet measured. GP2040 is the 1000 Hz USB cap, not an inputlag.science entry. We will submit ours before we claim a number.
Every claim is checkable before it even ships.
Read the code
The firmware is a public fork, not a spec sheet. Read it, build it, flash it.
The forkWe measure in public
Every number is a target, not a verified result. It goes to inputlag.science before we claim it.
inputlag.scienceTry the fix free
NOBD Desktop runs the sync window on any PC game in software, on the stick you already own.
NOBD DesktopIt also fixes a decades-old dropped-input bug. See the fix
Get it first.
The first Zero boards are in design now. The first 100 reservations lock the $150founding price, a founding serial, and a hand in the firmware. No money now, nothing binding, and we’ll tell you the final price before you owe a cent.
The Founding 100 lock $150 · $199 after
No payment now · non-binding · we tell you the final price before you owe a cent