800G OSFP / QSFP-DD transceiver, 2xDR4 / 2xFR4 / SR8 / DR8
800G光模块 OSFP/QSFP-DD · Optics & cabling
The largest single recurring spend line in an AI hall — a rail-optimised fabric carries thousands of modules behind a few hundred GPUs. Carry 3-5% spares in year one of a new generation, 1-2% thereafter.
What Qing asks
One dense message. Five is the whole budget per supplier reply, so the questions that decide comparability go first.
No category-specific question set yet — only the universal commercial terms below.
这批货是全新原封、官翻、拆机件还是工程样片(ES/QS)？请在形式发票上写明状态。如果是拆机件，来源和使用时长是多少？
报价是EXW、FOB还是CIF？指定口岸是哪里？报价里不含哪些费用(出口报关、内陆运输、保险、目的港费用)？
外箱尺寸多少？每箱装几台、毛重多少公斤？每托盘几箱？整单总体积多少立方米？是木托还是纸托、是否需要熏蒸证明？
请给出阶梯报价：1台、10台、50台、100台各是什么价格？每个型号的起订量是多少？价格有效期多久？
出口报关准备用哪个HS编码？报价是含税价还是不含税价？该编码的出口退税率是多少、退税是否已经体现在报价里？
整机原产地写哪里？能否出具原产地证(一般CO还是Form E/RCEP优惠证)？货物是从中国直接出口，还是经香港、新加坡或越南转运？
质保多少个月？DOA(到货即损)申报期限是几天？返修是寄回中国还是有海外备件？是否提供先行换货？返修运费谁承担？
这个托架/导轨/面板是原厂件还是兼容件？上面有没有原厂LOGO或型号标识？能否书面保证不侵犯第三方商标和专利，并承担相关责任？
整机和关键部件(CPU、加速卡、网卡)的原产地分别是哪里？产品里有没有使用美国原产的芯片、软件或技术？大概占多少比例？能不能配合签署最终用户和最终用途声明、承诺不转运？这个型号以前出口过哪些国家？
合同和发票的签约主体全称是什么？统一社会信用代码是多少？工厂是自有还是代工？母公司或控股股东是谁、持股比例多少？有没有国资或上市公司背景？
请提供公司全称、统一社会信用代码和营业执照复印件。贵司是生产工厂、原厂授权代理还是贸易商？如为工厂，工厂地址在哪里、可否安排验厂或视频验厂？开票主体与收款主体是否为同一家公司？
最小起订量是多少？请给出阶梯报价（如100/500/1000/5000片）。报价有效期多少天？NAND和HDD价格波动时如何调价？是否接受锁价？
+ 37 more universal terms
How buyers get burned here
Category-specific, from research rather than generic advice
- Filter class fraud: media sold as ePM1 55% (F7) that tests at coarse-filter performance. Demand the ISO 16890 report number, the accredited laboratory and the report date, and spot-test media from the delivered lot — not from the sample.
- Nominal versus actual filter dimensions: a filter quoted as 600x600 that measures 592x592 against a frame expecting 595x595 leaks unfiltered air around the element and voids the rated efficiency entirely. Always specify actual mm and tolerance.
- Buying filters on unit price instead of Eurovent energy class: a filter 30 Pa higher in initial pressure drop can cost more in fan energy over one service life than the entire unit price difference. Compare kWh/yr at 0.944 m3/s, then price.
- PTM7950 and high-end TIM counterfeits: this is the single most counterfeited item in the data-centre consumable catalogue. Relabelled generic phase-change film is endemic on Chinese marketplaces. Buy only via authorised distribution with lot traceability, and verify storage conditions in transit.
- Coolant supplied as industrial glycol cut with tap water rather than certified DI water, with no inhibitor package. Conductivity on arrival is the tell — test every drum against a stated uS/cm limit and reject on the number, not on the label.
- Automotive or HVAC inhibited coolant sold as data-centre coolant: silicates and borates drop out and foul cold-plate microchannels months later. Require a written silicate-free, borate-free, nitrite-free, amine-free declaration.
- Fitting a mixed-bed DI polishing cartridge to an inhibited PG25 loop: the resin strips the inhibitor package out of the fluid and corrosion begins silently. Common and expensive design error, usually made by whoever specified the CDU rather than the fluid.
Generated imagery — illustrative of the category, not a photograph of any supplier, facility or product on this platform.