# Contact HGCHIPS — RFQ, Samples, Cross-Reference Help 📍 Zhongshan HQ · Memory & Power Import Substitution · Taiwan Engineering · US Sales Support 📧 sales@hgchips.net  |  ☎ +86 760 8992 4799  |  💬 WhatsApp: +852 9298 5589 (management) / +852 9298 5590 (sales)  |  🕑 Quote reply < 24h Home / Contact # Tell us what you buy — we'll come back with compatibility and price Send your BOM or your target part numbers and we return the closest HGCHIPS equivalent with a field-by-field comparison. Compatibility checks and quotations are answered within 24 business hours, samples start from 10 pcs, and in-stock items dispatch from Shenzhen within 48 hours. Write to [sales@hgchips.net](mailto:sales@hgchips.net) or use the form on this page. RFQ form ## Get a compatibility check + quote ✓ Thank you — your RFQ has been received. We reply with a compatibility check and quotation within 24 business hours. For urgent BOMs, email sales@hgchips.net or WhatsApp +852 9298 5590. Company website Company name * Contact person * Work email * Country / region * Select… United States Germany Netherlands United Kingdom Vietnam Singapore Malaysia India Turkey Other Target part number(s) * Or attach your BOM (.xlsx / .csv) Annual / order quantity Target price (optional) Application (optional) Preference HG drop-in compatible Original brand stock Both — let me compare Submit RFQ → All fields marked * are required. We reply with a compatibility check and quotation within 24 business hours. Prefer email? Write to [sales@hgchips.net](mailto:sales@hgchips.net) or WhatsApp [+852 9298 5590](https://wa.me/85292985590). Direct contacts ## Prefer to write to a person? ### 📧 Email [sales@hgchips.net](mailto:sales@hgchips.net) — sales / RFQ ### 📞 Phone / WhatsApp **Zhongshan HQ landline** [+86 760 8992 4799](tel:+8676089924799) **Mobile & WeChat (24h)** [+852 9298 5589](tel:+85292985589) **WhatsApp — fastest reply** [+852 9298 5590 · chat now](https://wa.me/85292985590) ### ⏱ Response promise Compatibility check + quotation within **24 business hours**. Engineering samples from **10 pcs**. Test report ships with every lot. ### 🏢 Registered address & locations **Zhongshan HQ — Zhongshan Huagong Technology Co., Ltd.** Room 301-319, 3/F, Longde Building, Wuguishan Street, Zhongshan 528400, Guangdong, China ☎ [+86 760 8992 4799](tel:+8676089924799) · 📱 [+852 9298 5589](tel:+85292985589) · 💬 [+852 9298 5590](https://wa.me/85292985590) [🗺️ Open in Google Maps](https://www.google.com/maps/search/?api=1&query=Longde+Building+Wuguishan+Street+Zhongshan+Guangdong+China) **Shenzhen Test Center** — Shenzhen, Guangdong, China Incoming inspection, platform verification and burn-in screening. **Chengdu Office** — Chengdu, Sichuan, China **Taiwan** — engineering & JEDEC spec support **US Sales Support** — North America, local timezone **Business hours** — Mon–Sat 09:00–18:30 China time (UTC+8). WhatsApp messages answered outside these hours. ## Not sure if your part is replaceable? Try the cross-reference tool first — 245 memory and 30 ADI-compatible part pages are searchable right now. Check Cross Reference → FAQ ## Questions buyers ask before switching ### What is the minimum order quantity? Sample quantities start from 10 pcs so you can validate on your own board first. Production MOQ is confirmed with your quotation, per part number. ### Can I get samples before committing to an order? Yes. We ship a 10-pc sample pack of the cross-referenced part for engineering validation, with the sample cost credited against your first production order. ### Do you provide test reports and datasheets? Yes. Each lot is 100% inspected against the original datasheet and ships with per-lot inspection and validation records; datasheets and compatibility notes are provided for the part number you request. ### How fast do you reply to a quotation request? Within 24 business hours — and same day for parts that are in stock. Send your part numbers, monthly usage and target price for the fastest answer. ### How is compatibility verified before you call a part drop-in? Our Taiwan engineering team compares electrical specifications, ball map / pin-out, timing and package against the original manufacturer's public datasheet, then the part is functionally validated on mainstream platforms at the Shenzhen test center. Always qualify on your own platform. ## HGCHIPS at a glance Zhongshan Huagong Technology Co., Ltd. (HGCHIPS) supplies DRAM and power modules as import-substitution stock, with engineering support from Taiwan and sales support in the US. | Product line | Densities | Voltage | Package | Speed grades | | --- | --- | --- | --- | --- | | DDR3 SDRAM | 1 / 2 / 4 / 8 Gb | 1.35 V / 1.5 V | VFBGA-96 | DDR3-1066 / 1333 / 1600 / 1866 / 2133 | | DDR4 SDRAM | 4 / 8 / 16 / 32 Gb | 1.2 V | FBGA-78/96 | DDR4-2666 / 2933 / 3200 | | LPDDR4 / LPDDR4X | 4 / 8 / 16 / 24 / 32 / 64 / 128 Gb | 1.8 / 1.1 / 0.6 V | VFBGA-200 | LPDDR4-1600 to LPDDR4X-4266 | | ADI LTM46xx / LTM80xx µModule | — | — | — | Replacement line; electrical data per part number | - **Legal entity** — Zhongshan Huagong Technology Co., Ltd. (HGCHIPS), founded 14 November 2019 - **Headquarters** — Zhongshan, Guangdong, China · Shenzhen Test Center · Taiwan engineering · US sales support - **Example part numbers** — HGD48G16S26 (8 Gb DDR4-2666), HGD32G16N18I (industrial, −40 to +95 °C), HG4600 (LTM4600 replacement) - **Order profile** — samples from 10 pcs, quotations answered within 24 hours, in-stock items dispatched from Shenzhen within 48 hours ### HGCHIPS A Zhongshan (China) based semiconductor supply partner for import substitution — PIN2PIN replacement for Samsung, SK Hynix, Micron, Nanya memory and ADI µModule power parts that are on allocation, NRND or EOL, with engineering support from Taiwan. ### Products DDR3 SDRAM DDR4 SDRAM LPDDR4 / LPDDR4X ADI μModule Compatible Original Memory Stock Hot Stock — DDR3 / DDR4 Lines Hot Stock — ADI µModule Lines Hot Stock — Smart-Glasses BOM Cross Reference ### Company About Us Quality & Testing Resources Datasheets Contact ### Contact ✉ sales@hgchips.net ☎ +86 760 8992 4799 (Zhongshan HQ) 📱 +852 9298 5589 (24h mobile) 💬 WhatsApp — management +852 9298 5589 💬 WhatsApp — sales +852 9298 5590 📍 Room 301-319, 3/F, Longde Building, Wuguishan Street, Zhongshan 528400, Guangdong, China 🧭 Memory & Power Import Substitution 🇺🇸 US Sales Support © 2026 Zhongshan Huagong Technology Co., Ltd. (HGCHIPS). All third-party brand names and part numbers (Samsung, SK Hynix, Micron, Nanya, ADI, etc.) are the property of their respective owners and are used solely to describe compatibility. HGCHIPS parts are independently engineered replacements and are not manufactured or endorsed by the original brands. Stock levels, lead times and pricing shown on this site are indicative and confirmed at quotation. Last updated: 2026-09-21 · [Sitemap](https://hgchips.net/sitemap.xml) --- Source: https://hgchips.net/contact.html Last updated: 2026-09-26