EMU 0404 USB 和 0202 USB可能快出了吧??
(是否和0404同等級,我不知道)

若純以功能性上來說,
0404 USB在輸出入(I/O)功能上比0404(PCI)
有2個Mic/Line/Hi-Z類比輸入,
(支援48V phantom power,可直接用"電容式"麥克風...)
數位輸出也支援了AC3和DTS Passthru protocols,
多了1個3.5mm立體喇叭輸出(應該是和2個6.3mm單音輸出line out共用並聯的),
多了1個立體耳機專用輸出(附音量旋鈕)...
但似乎沒有了PatchMix...
至於0404-USB聲音品質方面(A/D,D/A...)和售價...??
(ps:1212M也沒有mic in/preamp, headphone out...,要1820M/1616M/1616M-PCI/...才有)

0202 USB沒有數位輸出入和MIDI in/out,可由USB供電...

EMU 0404 USB 2.0 Audio/MIDI Interface (24-bit/192kHz)
I/O Configuration:
- Two E-MU XTC Mic/Line/Hi-Z preamps (w/soft limiter and 48V phantom power)
- Two 1/4" Balanced Outputs
- 1/8" stereo speaker Output
- 24-bit/96kHz optical S/PDIF In/Out (switchable to AES/EBU)
- 24-bit/96kHz coaxial S/PDIF In/Out (switchable to AES/EBU)
- One set of MIDI In/Out
- One Stereo Headphone Output

EMU 0202 USB 2.0 Audio Interface (24-bit/192kHz)
I/O Configuration:
- Ultra-low Noise Mic/Line/Hi-Z Preamp (-127dBu EIN)
- Line/Hi-Z Input
- Two 1/4" Outputs
- 1/8" stereo speaker Output
- Stereo headphone Output
- USB bus-powered

官方介紹和圖片-PDF