xDuoo LINK3 USB DAC/Amp Review

A microSD card slot, which the page calls a new feature for portable USB DAC/amps, is the headline of the xDuoo LINK3, listed at $219. The page says it takes cards up to 2TB, read through the connected phone or computer. The page pairs two ES9039Q2M DAC chips with a 16-core XMOS XU316 processor for 32-bit/768kHz PCM and native DSD512, and lists 3.5mm and 4.4mm outputs, with up to 1000mW per channel in Super Power mode.

Specifications

Options and pricing

One option is listed, named LINK3, at $219, and it was orderable when the page was read. The page mentions a detachable USB Type-C connector cable and two USB-C ports, but the page text lists no case or in-the-box section and does not say whether a microSD card is included.

How it compares

The FiiO QX13 starts at $219.99 against $219 here and names an ES9027SPRO DAC in its title. The Moondrop Moonriver 3 is $219.99 and the FiiO BTR17 is $199.99; their titles name CS43198 and ES9069Q DAC chips, two of each. The LINK3 page lists a microSD slot and a power-only USB-C port, which suits listeners who want to carry a music library on the unit; the others suit buyers who prefer a different DAC chip.

Shipping, returns and warranty

HiFiGO sells from hifigo.com and says every order leaves its warehouse in China, usually 1-3 business days after it is placed, and says its delivery times are estimates, not promises. Its shipping policy gives the United States 1-2 weeks (about 10 days on average) by Priority and 6-10 days by Premium, both with duties and taxes prepaid by the store; Canada 2-3 weeks; the United Kingdom 1-2 weeks; and Australia 10-15 days. Express couriers (DHL, UPS, FedEx) take 3-7 days, but then the buyer pays any duties and taxes. No shipping page names New Zealand, PO boxes are not accepted, and the free-shipping thresholds differ between the store's own pages, so check the cart. One of its two shipping pages adds that a lost parcel on an order above $50 gets only a 50% refund. A US buyer reported a $40 tariff charge in August 2025, after which HiFiGO said it had added a customs notice at checkout.

Read the return terms before you order. The homepage advertises 7-day returns. Both of HiFiGO's policy pages offer a 7-day dead-on-arrival cover (a replacement or a full refund, with the return postage refunded) and also describe 30-day returns, but a request made 7 to 30 days after delivery loses 30% of the MSRP as a restocking fee (10% more if the packaging is incomplete), plus shipping both ways and duties, and the FAQ on the same pages says there is no refund or exchange once 7 days have passed. One version recommends reselling an opened product locally. Custom IEMs and custom cables cannot be returned, no return address is published, and buyers describe sending items back to China.

HiFiGO's warranty runs one year from the order date for parts and labor; its policy names desktop DACs and amps, IEMs and dongles at one year and gives cables and adapters three months. HiFiGO decides between repair and replacement, the buyer pays the shipping, and faulty items go back for service, not for a refund. Claims go to [email protected], the only contact the store lists: its pages name no company, street address or phone, and its terms are governed by the laws of China.

On Trustpilot, HiFiGO had 4.6 out of 5 from 378 reviews when we checked on 2026-10-28 (91% five-star, 5% one-star), and it had replied to about 75% of negative reviews; Trustpilot notes the store has not invited customers to review recently. The one-star reviews mostly concern the short return window and the deductions on returns, items listed in stock that turned out back-ordered, slow email support and a tariff charge on a US delivery in 2025. HiFiGO says its products are genuine and come in the brands' retail packaging; it does not claim to be an authorized dealer.