QSFP28 Active Optical Cable Assemblies

10Gtek’s active optical cable assemblies use state-of-the-art technology to provide cost effective high data throughput interconnects. The cables incorporate E/O and O/E conversion built into the connector shell to yield a dramatic improvement in PCB real estate utilization. Using 850 nm VCSEL technology, the active cable assemblies will operate over a data rate of 25 Gb/s per lane with an aggregate data rate of 100 Gb/s in each direction.


10Gtek’s family of active optical cables accelerate data connectivity for storage, networking and high-performance computing (HPC) applications. This product line includes 100GbE and InfiniBand; SFP28 for applications up to 25 to 28 Gb/s. Each cable solution leverages 10Gtek’s fiber optic technology for the transmission of data while reducing the weight, density and power consumption of traditional copper solutions. Key advantages of active optical cables include low weight for high port count architectures; small bend radius for easy installations; and low power consumption enabling a greener environment thereby providing the lowest total cost solution for data centers.



Compliant with 100GBASE-SR4
RoHS-6 Compliant (lead-free)
Low power consumption of max 2.5W
Hot pluggable electrical interface
0 to 70°C case temperature operating range
VCSEL array transmitter and PIN array receiver
Supports 100 Gbps data rate links up to 70m via OM3
Supports 100 Gbps data rate links up to 100m via OM4
Compliant to SFF-8665 (QSFP28 Solution) Revision 1.8
Using standard 12/8 lane optical fiber with 3-mm round cable
Compliant with 100GBASE-SR4 and CAUI-4 specification per IEEE 802.3bm


HPC Interconnects
Ethernet for 100GBASE-SR4
Data center and in-rack connection

Operational Specifications

Parameter Min Typical Max Unit Note*
Case Operating Temperature 0   70 °C  
Power Supply Voltage 3.135 3.3 3.465 V  
Date Rate per Channel     25.78125 Gbps  
Bit Error Ratio (BER)   10-12     1, 2
Control Input Voltage High 2   Vcc+0.3 V  
Control Input Voltage Low -0.3   0.8 V  
Two Wire Serial (TWS) Interface Clock Rate     400 kHz  
Differential Data Input / Output Load   100   Ohms +/- 10%
Standard Cable Lengths     100 m 3


1. Bit-Error-Rate (BER) is tested with PRBS 231-1 pattern.

2. 100G QSFP28 AOC cable requires an electrical connector compliant with SFF-8662 or SFF-8672 which is used on the host board in order to guarantee its electrical interface specification.

3. Per 100GBASE-SR4 Standard, cable length support up to 70m/100m via OM3/OM4, respectively. Different cable length within this range upon customization.

Ordering Information

  Part Number Description Data Rate Length (Meters) Power BER
AOC Cable
100Gbps OM3: up to 70m
OM4: up to 100m
<2.5W <10-12
AOC-Q44S-XXX 100G QSFP28 to 4x 25G
SFP28 AOC Breakout
100Gbps OM3: up to 70m
OM4: up to 100m
QSFP28: <2.5W
SFP28: <0.8W
AOC-S4S4-XXX 25G SFP28 AOC Cable 25Gbps OM3: up to 70m
OM4: up to 100m
<0.8W <10-12

Buy Now