Juniper 400G QSFP-DD Transceiver in Bangladesh — High-Performance Optical Networking Solution

A Juniper 400G QSFP-DD Transceiver is an advanced optical module designed to deliver 400Gbps ultra-high-speed data transmission for modern data centers, cloud infrastructure, and telecom networks. It uses the QSFP-DD (Quad Small Form-Factor Pluggable Double Density) form factor, enabling high port density and scalable network design.

These transceivers utilize 8×50G PAM4 lanes to achieve 400G speeds and support flexible breakout configurations such as 4×100G or 2×200G, making them ideal for high-performance networking environments.

Buy Juniper 400G QSFP-DD Transceiver in Bangladesh at Best Price

Datacom Technologies BD supplies genuine Juniper 400G QSFP-DD optical transceivers with full compatibility for Juniper switches, routers, and data center platforms across Bangladesh.

Key Features

• High-speed 400Gbps data transmission
• QSFP-DD form factor for high-density deployment
• Supports 4×100G / 2×200G breakout configurations
• Uses advanced PAM4 modulation technology
• Hot-swappable for easy installation
• Compatible with single-mode (SMF) and multimode fiber (MMF)
• Digital Optical Monitoring (DOM) support
• Power-efficient design (~7W–12W typical)

Types of Juniper 400G QSFP-DD Transceivers

• SR8 / SR4 (Short Range) — Up to ~100m over multimode fiber
• DR4 (Medium Range) — Up to ~500m over single-mode fiber
• FR4 (Extended Range) — Up to ~2km over SMF
• LR4 / PLR4 (Long Range) — Up to ~10km transmission
• ZR / ZR+ (Coherent Optics) — Up to 120km+ DWDM links

Popular Juniper 400G QSFP-DD Transceiver Models, Part Numbers & Server Compatibility at Datacom

Juniper QDD-400G-DR4

Part Number: 740-085351

Type: DR4
Fiber: Single-mode (SMF)
Connector: MPO-12
Distance: ~500 m

 Compatibility

• Juniper QFX / PTX series platforms
• 400GBASE-DR4 standard
• Breakout supported (4 × 100G)

???? Use case: leaf–spine data center

 Juniper QDD-400G-SR4 / SR4.2 (BiDi)

Part Number: 740-109152 (SR4.2 example)

Type: SR4 / SR4.2
Fiber: Multimode (MMF)
Connector: MPO-12
Distance:

• SR4: ~100 m
• SR4.2 (BiDi): up to ~100 m

 Compatibility

• 400GBASE-SR4 / SR4.2 Ethernet
• QSFP-DD MSA compliant
• Supports breakout & BiDi operation

???? Use case: short-range data center

 Juniper QDD-400G-FR4

(Common Juniper SKU family)

Type: FR4
Fiber: Single-mode (SMF)
Connector: LC duplex
Distance: ~2 km

 Compatibility

• 400GBASE-FR4 (CWDM)
• Data center interconnect (DCI)
• PAM4 + RS-FEC required

???? Use case: inter-DC / campus

 Juniper QDD-400G-LR4

(Typical Juniper SKU)

Type: LR4
Fiber: SMF
Connector: LC duplex
Distance: up to ~10 km

 Compatibility

• 400GBASE-LR4
• Metro / aggregation networks
• Juniper routing platforms

???? Use case: medium-distance backbone

 Juniper QDD-400G-ER4-30

Part Number: 740-148033

Type: ER4
Fiber: SMF
Connector: LC duplex
Distance: ~30 km

✅ Compatibility

• 400GBASE-ER4
• QSFP-DD MSA compliant
• Juniper routers & switches

???? Use case: long-distance metro

Juniper QDD-400G-ER8

(Carrier-grade variant)

Type: ER8
Fiber: SMF
Connector: LC duplex
Distance: ~40 km

 Compatibility

• 400GBASE-ER8
• Telecom / carrier networks
• Works across Juniper switching & routing platforms

???? Use case: long-haul / telecom

 Juniper QDD-400G-ZR (Coherent)

Part Number: 740-114884
SKU: QDD-4C-ZR-P-B

Type: ZR (coherent DWDM)
Fiber: SMF
Connector: LC duplex
Distance: up to ~120 km

 Compatibility

• OIF 400ZR standard
• Requires license on Juniper platforms
• Metro / DCI / WAN networks

???? Use case: DCI / long-haul

 General Compatibility Notes (IMPORTANT)

 Form Factor

• All above modules use QSFP-DD (Quad Small Form Factor Double Density)
• Supports 8 × 50G PAM4 electrical lanes

 Backward Compatibility

• QSFP-DD ports support:
  • QSFP28 (100G)
  • QSFP+ (40G)

 Standards Supported

• IEEE 802.3 (SR4, DR4, FR4, LR4, ER4)
• OIF 400ZR (coherent optics)

 Platform Compatibility

• Native support:
  • Juniper QFX Series (Data Center)
  • Juniper PTX Series (Routing)

 Multi-vendor Compatibility

• Possible with MSA-compliant optics:
  • Cisco
  • Arista
  • NVIDIA
    ➡️ Requires proper coding

 Quick Summary Table

Juniper 400G QSFP-DD Transceiver Price in Bangladesh

•  Contact Datacom Technologies BD for latest pricing and project-based quotations.

Common Use Cases

• Hyperscale and cloud data centers
• AI and high-performance computing (HPC)
• Data center interconnect (DCI)
• Enterprise core and aggregation networks
• Telecom and ISP backbone

Why Choose Juniper 400G QSFP-DD Transceiver?

• Industry-standard 400G optical technology
• High bandwidth with low latency
• Scalable and future-ready networking solution
• Reliable performance for mission-critical systems
• Ideal for AI, cloud, and large-scale data centers

Order Juniper 400G QSFP-DD Transceiver in Bangladesh

•  Call / WhatsApp: 01748-173213 | 01313-886347
•  Email: sales@datacom.com.bd | datacomtechnologiesbd@gmail.com