The SMSL PO100 PRO is a USB DDC (digital-to-digital converter) built on XMOS's XU316: USB-C in, up to 32-bit/768kHz PCM and native DSD512 out over LVDS I2S, and 24-bit/192kHz over coaxial or optical. It's for owners of a DAC with an I2S input or a dated USB receiver who want a bus-powered, 75g digital bridge.
Who the SMSL PO100 PRO is for
DACs with an I2S input: Its LVDS I2S output on an HDMI-type socket carries the full 32-bit/768kHz PCM and native DSD512 range, and an I2S MODE switch selects between two pin assignments.
Older DACs with a dated USB input: Keep the analog stage you like and let the XU316 handle USB, feeding the DAC over coaxial or optical at up to 24-bit/192kHz, with DSD64 via DoP.
PS5 and Nintendo Switch: Set the UAC switch to UAC1, which takes effect after a restart, and SMSL lists both consoles as supported sources.
Phones, tablets and laptops: It runs on 5V/100mA of USB bus power, and SMSL lists macOS 10.6+, Linux (driverless), Android and iOS as compatible; Windows 7 to 11 needs SMSL's driver.
Skip it if: you need analog output: it has no DAC or headphone jack, so it only works in front of a DAC, receiver or amp with a digital input.
I2S formats: PCM 44.1–768kHz, 16–32-bit; native DSD up to DSD512 (22.5792MHz)
Coaxial/optical formats: PCM 44.1–192kHz, 16–24-bit; DSD64 via DoP
MQA: MQA decoding, with MQA status LED
Jitter: 75ps (typical)
Compatibility: Windows 7–11 (driver), macOS 10.6+, Linux, Android, iOS; PS5 and Switch in UAC1 mode
Power: USB bus power, 5V / 100mA
Size and weight: 80 × 13 × 60mm, 75g
Genuine SMSL stock. Free shipping on every order, 45-day returns.
SMSL PO100 PRO vs similar options
vs Douk Audio U2 PRO: Same XU316 chip and I2S/coaxial/optical outputs, but its 24MHz oscillator can be replaced by soldering; pick it to experiment with clocks, or the PO100 PRO for 75g versus 220g.
Yes. Every unit we sell is genuine and brand-new, shipped in its original packaging, and backed by our 1-year TonePier warranty and 45-day returns.
Where does my order ship from, and how long does it take?
Every order ships from our warehouse in China, with full tracking, and most orders ship within 3 business days. Shipping is free on every order; most US orders arrive within 7–15 business days and most orders to other countries within 7–20 business days — see our shipping policy for details.
What if it isn't for me?
You get 45 days to decide. Keep the packaging, keep it in like-new condition, and send it back for a refund. Ear tips unsealed for hygiene reasons are fine — we expect you to actually listen.
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