Among the new features were an OLED display capable of showing sample waveforms, 16 GB of internal memory, USB-C and 32-note polyphony. Released in 2021, the 404MKII was a significant upgrade, while retaining the unit's original form factor. This allows you to delete the samples from the protected bank. Although the first bank comes with preset samples that are protected, these samples can be removed by holding 'cancel' as you turn it on. However, the 404 (along with its own upgrades) lacks the D-Beam feature of the previous SP-808 and SP-606 installments.

Using a 1GB CompactFlash card, sampling times can be as long as approximately 772 minutes in Lo-Fi mode, or up to 386 minutes long in Standard mode. Pattern data can be quantized and up to 24 patterns, each 1–99 measures long, can be stored in the internal memory.

An onboard pattern sequencer allows up to 8,000 notes to be recorded in real time. Having the traditional features of the Roland Grooveboxes, the 404 has the ability to record audio directly via line/mic, or import/export industry-standard WAV and AIF files via CompactFlash card. Roland SP-606 Sampling Workstation (2004).

See also: Roland Corporation and Boss Corporation

How to format sd card sp404sx