Next-Generation 1.6TB Optical Transceivers

Leading the industry with 800G and 1600G Silicon Photonics solutions for hyperscale data centers

1.6 Tb
Maximum Speed
2 KM
Max Link Length
16W
Power Efficiency
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Product Portfolio

Industry-leading OSFP transceivers built on Silicon Photonics technology

1600G OSFP Transceivers

OSFP1600 DR8 Transceiver
1600G

OSFP1600 DR8

The 1600G OSFP1600 DR8 Transceiver is designed to transmit and receive serial optical data links up to 212.5 Gbps data rate (per channel) by PAM4 modulation format over single-mode fiber. It is a small-form-factor hot pluggable transceiver module integrated with high performance Sipho modulator. It is compliant with 1600G Ethernet specs and OSFP MSA.

Key Specifications:
  • 8x200G PAM4 Sipho-based transmitter
  • 8x200G PAM4 1600GAUI-8 electrical interface
  • Dual MPO-12 / MO16 APC Optical Interface
  • Single +3.3V power supply
  • DDM function implemented
  • Hot-pluggable OSFP1600 form factor (IHS&RHS)
  • Maximum link length of 500m on SMF fiber
  • Power dissipation: 26W
  • International class 1 laser safety certified
  • Operating temperature range: 0℃ ~ 70℃
  • Compliant with ROHS2.0
Application:
  • 1600GBASE-DR8 Ethernet links
  • Switch & Router Connections
  • Data Centers
  • Other 1600G Interconnect Requirements
OSFP1600 2*FR4 Transceiver
1600G

OSFP1600 2*FR4

The 1600G OSFP1600 2xFR4 is designed to transmit and receive serial optical data links up to 212.5 Gbps data rate (per channel) by PAM4 modulation format over single-mode fiber. It is a small-form-factor hot pluggable transceiver module integrated with high performance Sipho modulator. It is compliant with 1600G Ethernet specs and OSFP MSA.

Key Specifications:
  • 8x200G PAM4 Sipho-based CWDM transmitter
  • 8x200G PAM4 1600GAUI-8 electrical interface
  • Dual Duplex LC Optical Interface
  • Single +3.3V power supply
  • DDM function implemented
  • Hot-pluggable OSFP1600 form factor (IHS&RHS)
  • Maximum link length of 2km on SMF fiber
  • Power dissipation: 26W
  • International class 1 laser safety certified
  • Operating temperature range: 0℃ ~ 70 ℃
  • Compliant with ROHS2.0
Application:
  • 1600GBASE-2xFR4 Ethernet links
  • Switch & Router Connections
  • Data Centers
  • Other 1600G Interconnect Requirements
OSFP1600 DR8 LRO Transceiver
1600G LRO

OSFP1600 DR8 LRO

The 1600G OSFP1600 DR8 LRO is designed to transmit and receive serial optical data links up to 212.5 Gbps data rate (per channel) by PAM4 modulation format over single-mode fiber. It is a small-form-factor hot pluggable transceiver module integrated with high performance Sipho modulator. It is compliant with 1600G Ethernet specs and OSFP MSA.

Key Specifications:
  • 8x200G PAM4 Sipho-based transmitter
  • Dual MPO-12 / MO16 APC Optical Interface
  • Single +3.3V power supply
  • DDM function implemented
  • Hot-pluggable OSFP1600 form factor (IHS&RHS)
  • Maximum link length of 500m on SMF fiber
  • Power dissipation: 16W
  • International class 1 laser safety certified
  • Operating temperature range: 0℃ ~ 70℃
  • Compliant with ROHS2.0
Application:
  • 1600GBASE-DR8 Ethernet links
  • Switch & Router Connections
  • Data Centers
  • Other 1600G Interconnect Requirements
OSFP1600 2*FR4 LRO Transceiver
1600G LRO

OSFP1600 2*FR4 LRO

The 1600G OSFP1600 2xFR4 LRO is designed to transmit and receive serial optical data links up to 212.5 Gbps data rate (per channel) by PAM4 modulation format over single-mode fiber. It is a small-form-factor hot pluggable module integrated with high performance Sipho modulator. It is compliant with 1600G Ethernet specs and OSFP MSA.

Key Specifications:
  • 8x200G PAM4 Sipho-based CWDM transmitter
  • Dual Duplex LC Optical Interface
  • Single +3.3V power supply
  • DDM function implemented
  • Hot-pluggable OSFP1600 form factor (IHS&RHS)
  • Maximum link length of 2km on SMF fiber
  • Power dissipation: 16W
  • International class 1 laser safety certified
  • Operating temperature range: 0℃ ~ 70℃
  • Compliant with ROHS2.0
Application:
  • 1600GBASE-2xFR4 Ethernet links
  • Switch & Router Connections
  • Data Centers
  • Other 1600G Interconnect Requirements

800G OSFP Transceivers

OSFP800 DR4 Transceiver
800G

OSFP800 DR4

The 800G OSFP800 DR4 Transceiver is designed to transmit and receive serial optical data links up to 212.5 Gbps data rate (per channel) by PAM4 modulation format over single-mode fiber. It is a small-form-factor hot pluggable transceiver module integrated with high performance Sipho modulator. It is compliant with 800G Ethernet specs and OSFP MSA.

Key Specifications:
  • 4x200G PAM4 Sipho-based transmitter
  • 4x200G PAM4 800GAUI-4 electrical interface
  • MPO-12 APC connector receptacle optical interface compliant
  • Single +3.3V power supply
  • DDM function implemented
  • Hot-pluggable OSFP800 form factor (IHS&RHS)
  • Maximum link length of 500m on SMF fiber
  • Power dissipation: 16W
  • International class 1 laser safety certified
  • Operating temperature range: 0℃ ~ 70 ℃
  • Compliant with ROHS2.0
Application:
  • 800GBASE-DR4 Ethernet links
  • Switch & Router Connections
  • Data Centers
  • Other 800G Interconnect Requirements
OSFP800 FR4 Transceiver
800G

OSFP800 FR4

The 800G OSFP800 FR4 Transceiver is designed to transmit and receive serial optical data links up to 226.875 Gbps data rate (per channel) by PAM4 modulation format over single-mode fiber. It is a small-form-factor hot pluggable transceiver module integrated with high performance Sipho modulator. It is compliant with 800G Ethernet specs and OSFP MSA.

Key Specifications:
  • 4x200G PAM4 Sipho-based CWDM transmitter
  • 4x200G PAM4 800GAUI-4 electrical interface
  • Duplex LC Optical Interface
  • Single +3.3V power supply
  • DDM function implemented
  • Hot-pluggable OSFP800 form factor (IHS&RHS)
  • Maximum link length of 2km on SMF fiber
  • Power dissipation: 16W（预估）
  • International class 1 laser safety certified
  • Operating temperature range: 0℃ ~ 70 ℃
  • Compliant with ROHS2.0
Application:
  • 800GBASE-FR4 Ethernet links
  • Switch & Router Connections
  • Data Centers
  • Other 800G Interconnect Requirements
OSFP800 DR4(Gearbox) Transceiver
800G Gearbox

OSFP800 DR4(Gearbox)

The 800G OSFP800 DR4 Transceiver is designed to transmit and receive serial optical data links up to 212.5 Gbps data rate (per channel) by PAM4 modulation format over single-mode fiber. It is a small-form-factor hot pluggable transceiver module integrated with high performance Sipho modulator. It is compliant with 800G Ethernet specs and OSFP MSA.

Key Specifications:
  • 4x200G PAM4 Sipho-based transmitter
  • 8x100G PAM4 800GAUI-8 electrical interface
  • MPO-12 APC connector receptacle optical interface compliant
  • Single +3.3V power supply
  • DDM function implemented
  • Hot-pluggable OSFP800 form factor (IHS&RHS)
  • Maximum link length of 500m on SMF fiber
  • Power dissipation: 14W（预估）
  • International class 1 laser safety certified
  • Operating temperature range: 0℃ ~ 70 ℃
  • Compliant with ROHS2.0
Application:
  • 800GBASE-DR4 Ethernet links
  • Switch & Router Connections
  • Data Centers
  • Other 800G Interconnect Requirements
OSFP800 FR4(Gearbox) Transceiver
800G Gearbox

OSFP800 FR4(Gearbox)

The 800G OSFP800 FR4 Transceiver is designed to transmit and receive serial optical data links up to 226.875 Gbps data rate (per channel) by PAM4 modulation format over single-mode fiber. It is a small-form-factor hot pluggable transceiver module integrated with high performance Sipho modulator. It is compliant with 800G Ethernet specs and OSFP MSA.

Key Specifications:
  • 4x200G PAM4 Sipho-based CWDM transmitter
  • 8x100G PAM4 800GAUI-8 electrical interface
  • Duplex LC Optical Interface
  • Single +3.3V power supply
  • DDM function implemented
  • Hot-pluggable OSFP800 form factor (IHS&RHS)
  • Maximum link length of 2km on SMF fiber
  • Power dissipation: 14W（预估）
  • International class 1 laser safety certified
  • Operating temperature range: 0℃ ~ +70 ℃
  • Compliant with ROHS2.0
Application:
  • 800GBASE-FR4 Ethernet links
  • Switch & Router Connections
  • Data Centers
  • Other 800G Interconnect Requirements

Silicon Photonics Technology

Pioneering the future of optical interconnects with advanced SiPho integration

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High-Speed PAM4

Advanced PAM4 modulation delivering up to 226.875 Gbps per channel for unmatched bandwidth density

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Silicon Photonics

Integrated SiPho modulators combining CMOS manufacturing with photonic performance

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Thermal Management

Reliable operation across 0°C to 70°C ambient temperature range with intelligent DDM

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Power Efficiency

Industry-leading LRO variants delivering up to 38% power reduction for sustainable data centers

Global Reach, Local Expertise

KARST.AI is a leading provider of high-speed optical transceivers, specializing in OSFP solutions for next-generation data centers and network infrastructure.

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Headquarters & Manufacturing

Singapore

State-of-the-art manufacturing facility with advanced silicon photonics integration capabilities. Our Singapore operations ensure world-class quality control and rapid production scaling.

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US Operations

Sales, R&D & Supply Chain

Strategic presence across the United States supporting customer engagement, product development, and supply chain management. Our US teams provide local support and drive innovation for North American markets.

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Industry Compliance

Full compliance with IEEE 802.3, OSFP MSA, and international safety standards

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Quality Assurance

ISO-certified manufacturing with rigorous testing protocols

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Environmental Responsibility

RoHS 2.0 compliant products with sustainable manufacturing practices