
Safe checkout
Secure payments
Fast dispatch
1–2 day handling
Free shipping
U.S. ground
Warranty & RMA
Support after delivery
D-Link DEM-QX10Q-LR4 LC Connector Transceiver
- Quad Small Form-Pluggable (QSFP+) form factor
- Hot pluggable
- Supports 40G Ethernet
- Digital Diagnostics Monitoring (DDM)
- RoHS compliant
- Multiple Source Agreement (MSA) compliant
- IEEE 802.3ba 40GBASE QSFP+ compliant
- Technical Specifications
DEM-QX10Q-LR4 isn't on our shelf today — we source it to order. Request a quote and we'll confirm price and lead time within one business day.
Key specifications
See full specs ↓- SFP transceiver type
- Fiber optic
- Maximum data transfer rate
- 40000 Mbit/s
- Interface type
- QSFP+
- Single-mode fiber (SMF) supported
- Yes
- Multi-mode fiber (MMF) supported
- No
- Fiber optic connector
- LC
Documents
Product details
D-Link 40GBase-LR4 QSFP+ Single-Mode Transceiver, 10km. SFP transceiver type: Fiber optic, Maximum data transfer rate: 40000 Mbit/s, Interface type: QSFP+. Product colour: Blue, Silver. Maximum voltage: 3.3 V, Maximum current: 1.13 A. Compliance certificates: RoHS, Certification: FCC Class B CE Class B VCCI Class B FDA/CDRH TUV CSA MSA. Width: 18.4 mm, Depth: 118 mm, Height: 12.9 mm
Performance
| SFP transceiver type | Fiber optic |
| Maximum data transfer rate | 40000 Mbit/s |
| Interface type | QSFP+ |
| Single-mode fiber (SMF) supported | Yes |
| Multi-mode fiber (MMF) supported | No |
| Fiber optic connector | LC |
| Fiber cable diameters supported (core/cladding) | 9/125 µm |
| SFP transceiver standard | LR4 |
| Maximum transfer distance | 10000 m |
| Wavelength | 1310 nm |
| Tx power (min) | -4 dBmW |
| Tx power (max) | 8.3 dBmW |
| Rx power (min) | 3.5 dBmW |
| Rx power (max) | -13.7 dBmW |
| Link budget | 19.8 dB |
| Ethernet interface type | 400 Gigabit Ethernet |
| Networking standards | IEEE 802.3ba |
| Fiber ethernet cabling technology | 40GBASE |
| Duplex system | Full |
| Digital Diagnostics Monitoring (DDM) | Yes |
Features
| Product colour | Blue, Silver |
| Hot-Plug support | Yes |
Power
| Maximum voltage | 3.3 V |
| Maximum current | 1.13 A |
Certificates
| Compliance certificates | RoHS |
| Certification | FCC Class B CE Class B VCCI Class B FDA/CDRH TUV CSA MSA |
Operational conditions
| Operating temperature (T-T) | 0 - 70 °C |
| Storage temperature (T-T) | -40 - 85 °C |
| Operating relative humidity (H-H) | 0 - 85% |
| Storage relative humidity (H-H) | 0 - 85% |
Weight & dimensions
| Width | 18.4 mm |
| Depth | 118 mm |
| Height | 12.9 mm |
| Weight | 40 g |
Packaging content
| Quantity per pack | 1 pc(s) |
Packaging data
| Package width | 74 mm |
| Package depth | 131 mm |
| Package height | 49 mm |
| Package weight | 64 g |
Logistics data
| Shipping (inner) case length | 36 cm |
| Shipping (inner) case width | 26 cm |
| Shipping (inner) case height | 31 cm |
| Shipping (inner) case net weight | 3.2 kg |
| Products per shipping (inner) case | 50 pc(s) |
| Pallet gross weight (air) | 272 kg |
| Master (outer) cases per pallet (air) | 60 pc(s) |
| Products per pallet (air) | 3000 pc(s) |
| Pallet gross length | 102 cm |
| Pallet gross width | 122 cm |
| Pallet height (air) | 199 cm |
| Pallet gross weight (sea) | 272 kg |
| Master (outer) cases per pallet (sea) | 60 pc(s) |
| Products per pallet (sea) | 3000 pc(s) |
| Pallet height (sea) | 199 cm |
| Shipping (inner) case gross weight | 4.2 kg |
| Harmonized System (HS) code | 85369010 |
Description
D-Link’s 40G QSFP+ Module series are hot-swappable QSFP+ transceivers that plug into QSFP+ slots on switches and support 40G Ethernet. The D-Link 40GBASE QSFP+ Module Series transceivers offer customers a wide variety of 40G Ethernet connectivity options for data centres, enterprise wiring closets, and service provider transport applications. Quad Small Form-factor Pluggable Plus Format The transceivers use the Quad Small Form-factor Pluggable Plus format (QSFP+) connectors, which integrate four transmitting and four receiving channels. QSFP+ supports up to 10.5 Gb/s per channel for applications such as 40G Ethernet. Hot Pluggable All D-Link transceivers are hot pluggable. You can connect a transceiver while the system is powered on without causing any issues, and easily swap one for another without having to reboot the switch each time. This permits modules to be added or removed without interrupting the network, facilitating maintenance and greatly reducing downtime. 40G Ethernet speeds The transceivers all support 40G Ethernet, which results in very fast data transmissions of up to 40 Gbit/s. This is 40 times faster than Gigabit Ethernet and enables the switch to handle faster and higher data transmissions, making it very suitable for business needs. Digital Diagnostics Monitoring (DDM) All 40G QSFP+ modules feature DDM real time monitoring of critical parameters, including transmitted and received power, temperature, and voltage. This allows for convenient monitoring of the module’s fibre connection and ensures that network connection issues are detected early.
Condition: Refurbished
Free U.S. ground shipping
Typically 1–2 days handling, 3–7 days in transit.
Purchase orders accepted
Government, enterprise, data center and small business.
Buying 10+ units?
Get volume pricing and availability for DEM-QX10Q-LR4.







