D-Link Systems, Inc.
D-Link 100GBASE-SR4 QSFP28 Multimode Optical Transceiver, MPO, up to 100 m (DEM-Q2801Q-SR4)
Highlights: 100GbE links over multimode fiber • Up to 70 m on OM3 or 100 m on OM4 • MPO connector • 850 nm parallel optics • Hot-pluggable QSFP28 module
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- 100GbE QSFP28 Optical Transceiver: Supports 100GBASE-SR4 for short-reach fiber links in data centers and enterprise networks
- Up to 328 ft (100 m) of Reach: Supports links over 50/125 µm multimode fiber
- MPO Fiber Interface: Uses an MPO connector and 850 nm optics for parallel multimode transmission
- Hot-Pluggable Design: Supports module replacement while the host switch remains powered on
- Operating Temperature: Rated for 32°F to 158°F (0°C to 70°C)
- Ethernet and Module Standards: Meets IEEE 802.3bm and applicable multi-source agreement (MSA) specifications
- Regulatory and Environmental Compliance: FCC Class B and RoHS compliant
- 5-Year Limited Warranty
- Trusted Business-Class Reliability: With 40+ years of networking experience, D-Link offers Ethernet switches and optical interconnects for building and expanding data center networks
For business-class solutions, reseller pricing, distribution availability and partner access program, Please reach out to our business solutions team:(888)354-6574 or solutions@us.dlink.com
Product Specifications
| Ethernet Interface | 100GbE (100GBASE-SR4) |
|---|---|
| Form Factor | Hot-pluggable QSFP28 |
| Fiber Type | 50/125 µm multimode fiber (OM3 or OM4) |
| Optical Connector | MPO |
| Rated Reach | Up to 70 m on OM3 or up to 100 m on OM4 |
| Optical Wavelength | 850 nm across four parallel optical lanes |
| Operating Temperature | 32°F to 158°F (0°C to 70°C) |
| Standards & Compliance | IEEE 802.3bm, MSA, FCC Class B, ICES-003 Class B and RoHS |
| Switch Compatibility | Use with the 100GbE QSFP28 uplinks on the D-Link DTS-5000-56S, DXS-3610-54S or DXS-3610-54T. Contact D-Link to confirm support for other switch models. |
Switches and fiber cabling are sold separately.
US Domestic Orders To Contiguous 49 States
- Orders are processed Monday – Friday, excluding holidays.
- Orders using Fedex SmartPost are estimated to arrive within 5 to 7 business days (not including Sunday or holidays) following credit card authorization and order processing.
- Please allow 1 to 3 business days to process order.
- Orders placed after 10:00 am Pacific Standard Time will not be processed until the following business day.
- D-Link will use their discretion on using Fedex SmartPost carriers only.
- Sales tax are not counted towards the merchandise subtotal. Only one promotional code can be used per order.
Shipping Methods and Rates
|
Order Amount |
Fedex SmartPost |
Estimated Arrival Time |
|
Over $30.00 |
FREE |
5-7 business days |
- Free shipping on orders over $30 valid (not including sales tax) on Fedex SmartPost shipping only. Not valid on previous purchases. Valid for limited time only.
Shipping Timeline
- Shipping time does not include processing time of 1-3 business days.
- Estimated arrival times are not guaranteed. Weather delays and other unforeseen circumstances may impact delivery time.
- Fedex does not deliver on Sundays or holidays.
D-Link Holidays
Packages will not be processed or shipped on the following acknowledged holidays.
|
Holiday |
Acknowledged Date |
|
New Year’s Day |
Monday, January 1, 2024 |
|
President’s Day |
Monday, February 19, 2024 |
|
Good Friday |
Friday, March 29, 2024 |
|
Memorial Day |
Monday, May 27, 2024 |
|
Fourth of July |
Thursday, July 4, 2024 |
|
Labor Day |
Monday, September 2, 2024 |
|
Thanksgiving Day |
Thursday, November 28, 2024 |
|
Day after Thanksgiving |
Friday, November 29, 2024 |
|
Christmas Day |
Wednesday, December 25, 2024 |
|
New Year's Eve |
Tuesday, December 31, 2024 |
Additional Information
- We do not offer shipping to P.O. Boxes.
- We are currently not offering shipping to the following locations:
- Alaska
- American Samoa
- Micronesia
- Guam
- Hawaii
- Marshall Islands
- Northern Mariana Islands
- Palau
- Puerto Rico
- S. Virgin Islands
- APO/FPO
Returns - Physical Products
Products purchased directly from the official shop.us.dlink.com site may be returned within 30 days of the delivery date, subject to the terms and conditions below.
To initiate a return, customers must contact D-Link to obtain a Return Merchandise Authorization (RMA) and return instructions. Returns received without an approved RMA may not be processed.
Returned products must be received in good condition and include:
- the unit with an intact serial/UPC label
- original power supply
- all accessories originally included
- Proof of purchase or invoice
We strongly recommend including the original packaging and documentation. If items are missing, damaged, or show signs of excessive use, the refund amount may be reduced accordingly.
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Restocking Fees
Returned products may be subject to a restocking fee of up to 15%, at D-Link’s discretion, based on product condition, completeness, and the nature of the return.
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Return Shipping
Unless the product is confirmed or deemed defective by the D-Link technical support team, or the return is due to a shipping error by D-Link, the customer is responsible for return shipping costs.
We recommend using a carrier that provides a tracking number. D-Link is not responsible for items that are lost or damaged in transit.
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Defective or Incorrect Products
If a product is confirmed or deemed defective by the D-Link technical support team, or an incorrect item was shipped, D-Link will provide return instructions and cover applicable return shipping costs.
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Refund Processing
Approved refunds will be issued to the original payment method once the returned product has been received and inspected.
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Refund Timing
Refunds are typically processed within seven (7) to ten (10) business days of D-Link’s receipt of the returned product. Please note that your financial institution may take additional time to post the refund to your account.
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Final Sale Items
Products clearly marked as Final Sale are not eligible for return, exchange, or refund.
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Services
All sales of services, including technical support or service plans, are final and non-refundable.
Consumer Rights
Nothing in this policy limits any rights you may have under applicable consumer protection laws that vary by state.
To start a return:
Use the contact methods available at: https://support.dlink.com/search.aspx
100GbE Multimode Fiber Links up to 100 m
The D-Link DEM-Q2801Q-SR4 is a hot-pluggable 100GBASE-SR4 QSFP28 optical transceiver for short-reach fiber uplinks. Its MPO connector carries 100GbE over four parallel optical lanes at 850 nm, with reach up to 70 m on OM3 or up to 100 m on OM4 multimode fiber.
Pair with D-Link Switches
Pair this transceiver with a 100GbE QSFP28 uplink on the DTS-5000-56S, DXS-3610-54S or DXS-3610-54T. For other switch models, talk to a D-Link expert to confirm transceiver support. Switches and fiber cabling are sold separately.
Applications
Data Center Uplinks • Rack-to-Rack Links • Network Aggregation • Enterprise Server Rooms
5-Year Limited Warranty
100GbE QSFP28
Hot-pluggable 100GBASE-SR4 optical transceiver for short-reach fiber uplinks
Reach up to 100 m
Up to 70 m on OM3 or up to 100 m on OM4 over 50/125 µm multimode fiber
MPO Connector
Connects to parallel multimode fiber cabling. Four optical lanes at 850 nm carry 100GbE
Pair with D-Link Switches
Use with 100GbE QSFP28 uplinks on the DTS-5000-56S, DXS-3610-54S or DXS-3610-54T (sold separately)
Operating Temperature
32°F to 158°F (0°C to 70°C)
Standards & Compliance
IEEE 802.3bm, MSA, FCC Class B, ICES-003 Class B and RoHS
Data rates and link distances are specified maximums. Actual performance and reach may vary with host equipment, software version, port configuration, cable or fiber type, link loss and operating conditions. Switches and cabling are sold separately.
Technical Specifications
DEM-Q2801Q-SR4
100GBASE-SR4 QSFP28 Multimode Optical Transceiver
- Designed For
- Short-reach 100GbE links over multimode fiber
- Applications
- Data center uplinks, rack-to-rack links and enterprise network aggregation
Optical Link & Cabling
| Ethernet interface | 100GbE (100GBASE-SR4) |
|---|---|
| Fiber type | 50/125 µm multimode fiber (OM3 or OM4) |
| Optical connector | MPO |
| Rated reach | Up to 70 m on OM3 Up to 100 m on OM4 |
| Nominal wavelength | 850 nm across four parallel optical lanes |
Host Interface & Installation
| Host form factor | QSFP28 |
|---|---|
| Installation | Hot-pluggable |
| D-Link switch options | 100GbE QSFP28 uplinks on the DTS-5000-56S, DXS-3610-54S and DXS-3610-54T |
| Supply voltage | 3.3 V |
| Maximum input current | 1.06 A |
| Dimensions | 5.04 × 0.72 × 0.33 in (128 × 18.35 × 8.5 mm) |
| Weight | 1.59 oz (45 g) |
Operating & Storage Conditions
| Operating temperature | 32°F to 158°F (0°C to 70°C) |
|---|---|
| Storage temperature | −40°F to 185°F (−40°C to 85°C) |
| Operating humidity | 5% to 95% |
| Storage humidity | 5% to 95% |
Standards, Compliance & Warranty
| Ethernet standard | IEEE 802.3bm |
|---|---|
| Module specifications | MSA compliant |
| Regulatory & environmental | FCC Class B, ICES-003 Class B and RoHS |
| Warranty | 5-Year Limited Warranty |
Switches and fiber cabling are sold separately. Contact D-Link for switch and port compatibility or deployment requirements.
Frequently Asked Questions
What is the DEM-Q2801Q-SR4 used for?
It is a 100GBASE-SR4 QSFP28 optical transceiver for short-reach 100GbE links, such as rack-to-rack connections and fiber uplinks in data centers and enterprise server rooms.
What fiber and connector does it use?
It uses an MPO connector with 50/125 µm OM3 or OM4 multimode fiber.
How far can the link reach?
Rated reach is up to 70 m on OM3 or up to 100 m on OM4. Actual reach depends on the fiber path and its connections.
Which switches can I use it with?
Use a 100GbE QSFP28 uplink on the DTS-5000-56S, DXS-3610-54S, or DXS-3610-54T. For other switch models, contact D-Link to confirm support.
What should I confirm before deploying the link?
Contact D-Link to confirm your switch port and MPO cabling.
Can I replace the transceiver while the switch is powered on?
Yes. The module is hot-pluggable, so the switch can stay powered on during replacement. Removing the module interrupts the link it serves.
What’s included with the transceiver?
The DEM-Q2801Q-SR4 transceiver is sold individually. Switches and fiber cabling are sold separately.
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