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SMSL

SMSL PO100 USB-C Digital Interface

SMSL PO100 USB-C Digital Interface

  • Authorized Retailer
  • Free US Shipping $49+
  • 1-Year Warranty
  • 45-Day Returns
$37.99 USD
$37.99 USD
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The SMSL PO100 is a small USB-C digital interface that solves a specific and very common problem: your DAC has optical and coaxial inputs, and your phone or laptop only has USB. It converts Type-C to S/PDIF at 44.1-192kHz with DSD64 support, using an XMOS chip and adding MQA capability along the way.

Think of it as infrastructure rather than a sound-signature purchase. It's the right buy when you want to feed a legacy DAC, an AV receiver, or a desktop amp with a clean digital feed from a modern source, or when you want to bypass a computer's USB implementation entirely and hand the DAC a coax signal instead. Keep one in a bag for hotel and office setups.

  • USB-C in, optical and coaxial out
  • 44.1-192kHz, DSD64 support
  • XMOS chip, MQA capable
  • Authorized retailer, 45-day returns, 1-year warranty
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Good to know

Frequently asked questions

Is this unit genuine?

Yes. TonePier is an authorized retailer — every unit comes from the brand or its official distributor, carries a valid serial number and is covered by the full manufacturer warranty.

How long does shipping take?

SKUs stocked in our US warehouse ship within 1–2 business days. Items shipped direct from our China hub typically arrive in 8–15 days with full tracking. The product page tells you which applies before you order.

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.