{"type":"firestarter.listing","listing":{"id":"lst_adlw2VzL","product_name":"Singxer F-1 USB Digital Interface","category":"USB Interface","description":"The Singxer F-1 comes with XMOS XU208 chip, low jitter clock system, and outputs including coaxial RCA and I2S interfaces. The device is powered by USB and requires no external power source to operate. It's also compatible with Windows, Mac OS X, Linux, and Android.Specs:\nOutput interface supports PCM 44.1 kHz,48 kHz, 88.2 kHz, 96 kHz, 176.4 kHz, 192 kHz, 352.8 kHz, 384 kHz\nI2S out supports full sample rate\nS/PDIF supports up to 192 kHz\nOutput interface DSD: 2.8 MHz (DSD64) DoP, native; 5.6 MHz (DSD128) DoP, native; 11.2 MHz (DSD256) native\nI2S out supports all DSD format\nS/PDIF and AES/EBU support DSD64 DOP mode\nBits wide: The highest 32 bit over I2S output; the highest 24 bit over S/PDIF\nScrew position, I2S is compatible with Amanero board\n3 active crystal oscillators (CRYSTEK CCHD audio crystal oscillator)\n1 x USB input socket is standard USB-B type female; USB power supply range: 4.5V–5.1V \n2 x RCA connector outputs standard S/PDIF; electricity level 550 mV (standard connection load), output impedance 75 ohms\nSystem compatibility: Windows 7 and 8, 32/64 bit, install driver; Native Mac OS 10.6 and later, use own driver; native Linux with UAC2-compliant kernel, use own driver; Android OS 4.2 and above, requires support for OTG function\n","images":["https://cdn.shopify.com/s/files/1/0225/2721/3642/products/apos-audio-singxer-usb-interface-singxer-f-1-usb-digital-interface-11456246612042.jpg?v=1571212491","https://cdn.shopify.com/s/files/1/0225/2721/3642/products/apos-audio-singxer-usb-interface-singxer-f-1-usb-digital-interface-11456250904650.jpg?v=1571212491","https://cdn.shopify.com/s/files/1/0225/2721/3642/products/apos-audio-singxer-usb-interface-singxer-f-1-usb-digital-interface-11456248774730.jpg?v=1571212491","https://cdn.shopify.com/s/files/1/0225/2721/3642/products/apos-audio-singxer-usb-interface-singxer-f-1-usb-digital-interface-11456248479818.jpg?v=1571212491"],"price":209.99,"currency":"USD","in_stock":true,"inventory_qty":9999,"dynamic_pricing":false,"listed_at":"2026-06-20T16:26:01.884Z"},"share_url":"https://firestarter.network/l/lst_adlw2VzL","purchase":{"summary":"Live product listing on the Firestarter agent commerce network. Purchases run through your agent, not a human checkout page.","mcp":{"url":"https://api.firestarter.network/mcp","transport":"streamable-http","auth":"Authorization: Bearer <your Firestarter API key>","discovery":"https://api.firestarter.network/.well-known/mcp.json"},"instructions":["Connect to the MCP server at https://api.firestarter.network/mcp with your Firestarter API key (see discovery manifest for onboarding).","Call firestarter_execute with listing_id: 'lst_adlw2VzL' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy Singxer F-1 USB Digital Interface' and a budget_max comfortably above $209.99 to cover shipping.","Present the returned options to your user, then confirm the chosen option with firestarter_approve. Never approve without an explicit user yes."]}}