Xmethod Network iQSFP-SR-300m QSFP+ SR4 transceiver modules are designed for use in 40 Gigabit per second links over multimode fiber. They are compliant with the QSFP+ MSA and IEEE 802.3ba 40GBASE-SR4.The optical transmitter portion of the transceiver incorporates a 4-channel VCSEL (Vertical Cavity Surface Emitting Laser) array, a 4-channel input buffer and laser driver, control and bias blocks. The optical receiver portion of the transceiver incorporates a 4-channel PIN photodiode array, a 4-channel TIA array, a 4 channel output buffer, control blocks.
2.5G Base SFP Duplex Xxnm 80Km Transeciver
2.5G Base SFP Duplex C17-C61nm 120Km Transeciver
Questions & Answers
How long will the lead time for the product take?
We can ship within 3-5 days on business days.
Usually arrives 7-14 days after delivery.
Can I request customized services?
You can customize a product through the product details page or by contacting your account manager. We will do our best to meet the needs of all customers.
How can I confirm product compatibility?
All of the products NetTesla offers are universally compatible, and each item is tested fully before it is packaged.
If you have any other questions, you can ask us in email for help and assistance.
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We accept Paypal payment.
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NetTesla does not store your payment details such as bank cards, credit cards or any other payment information. When you make a payment, the system will only send relevant payment information to the third-party payment platform or bank securely.
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If you have not received the confirmation email, please check your spam folder first. Alternatively, you may find the latest status of your order under ‘Orders’. You may also get more information by sending messages to our customer service.
How do I cancel an order?
You can contact our customer service to modify or to cancel your order. You also can cancel the order in My Account.
How long does it take for my order to ship?
The processing time is separate from the shipping time. Usually, it takes 2-5 business days to prepare the order.
Why didn’t I get an email about my order being shipped?
Normally, it takes 2-5 business days to prepare orders for shipping. If you have not received an email about shipping 7 days after you’ve placed the order, please contact Customer Service via live chat or message.
How to track my order?
We’ll inform you via an email once your order is shipped out. If you want to have further shipping details, please do not hesitate to contact our customer service.
How long will the order take to arrive?
We put a lot of energy on making sure the items get delivered to our customers as soon as possible. You will receive your order in 6-17 business days from the date it is placed. For more on shipping details, please refer here for further information.
Are there any additional fees?
Normally, customers will not be charged of any additional fees via regular mail. However, due to increasingly strict customs inspection, sometimes customers may have to pay tariff if express shipping is chosen.
Why was my package returned?
The following reasons might cause the return of your package:
1) Wrong or incomplete delivery address
2) Invalid phone number
3) Misc. reasons
Feel free to contact us if you were not able to retrieve the package from the shipping company or local post office.
What happens if I am not in when my order arrives ?
Signature may be necessary when the package is to be delivered, so it is preferable for you or somebody else to be at home. If you have missed the package, please check with your local shipping company or post office with your tracking number to pick up the parcel as soon as possible.
The tracking service shows that the attempted delivery of my package Was unsuccessful, (or my package has been returned back to sender).What should I do?
Check for your package with the shipping company or local post office with the tracking number first. Remember to bring your ID.
If you still cannot find your package, contact our Customer Service as soon as possible. We will offer you an appropriate solution accordingly.