Product List
| Model | Form Factor | Date Ra（Gb/s） | Plug in and out | Power | Attenuation | Download |
| VC-LOOPBACK-400GQSFP-0-5 | QSFP-DD | 400G | 500 Times | 5W | 0dB |
400G QSFP DD Loopback Module Series
Quick Details
QSFP-DD Loopback module is an 8-channel parallel passive loopback used for storage, data center QSFP-DD port testing. Monitor power supply and operation temperature; over temperature and power supply warning. It offers 8 independent data transmission channels via its internal module, an aggregate data rate of 200Gbps transmission can be achieved by this product. The cage and connector design provide backwards compatibility to QSFP28 modules, which can be inserted into a QSFP-DD port and connected to 4 of the 8 electrical channels. Data is transmitted from the host into TX of this product and then output from RX of this product back to the host.
This drawing is for reference only. If you need more information and need to modify the drawing, please Email us：support@vchung.com
Q1. What is your terms of packing?
Answer: A: Generally, we pack our goods in ziplock bag and brown cartons. If you have special requirements, please let us know and we will try our best to cooperate with you.
Q2. What is your terms of payment?
Answer: A: T/T 30% as deposit, and 70% before delivery. We'll show you the photos of the products and packages before you pay the balance.
Q3. What is your terms of delivery?
Answer: A: EXW, FAS, FOB, FCA, CFR, CPT, CIF, CIP.
Q4. How about your delivery time?
Answer: A: Generally, it will take 2 to 10 days after receiving your advance payment. The specific delivery time depends on the items and the quantity of your order.
Q5. Can you produce according to the samples?
Answer: A: Yes, we can produce by your samples or technical drawings.
Q6. What is your sample policy?
Answer: A: We can supply the sample if we have ready parts in stock, but the customers have to pay the sample cost and the courier cost.
Q7. Do you test all your goods before delivery?
Answer: A: Yes, we have 100% test before delivery.
Q8: How do you make our business long-term and good relationship?
Answer: A:1. We keep good quality and competitive price to ensure our customers benefit ; 2. We respect every customer as our friend and we sincerely do business and make friends with them, no matter where they come from.
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