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QSFP+ Direct Attach Cable

Shenzhen Optostar Optoelectronics Co., Ltd
Shenzhen Optostar Optoelectronics Co., Ltd
City: Shenzhen
Province/State: Guangdong
Country/Region: China
Tel: 86-755-26400198
Contact Person:
Ms Yang

QSFP+ Direct Attach Cable

Brand Name : OPTOSTAR
Model Number : OP--C768-XXC
Certification : CE,Rohs,FCC,UL
Place of Origin : China
Payment Terms : T/T, Western Union,Paypal
Supply Ability : 5000000set per month
Packaging Details : 1set/box
multi-gigabit data rates : 1.0 Gbps - 10.3125 Gbps (per channel)
Maximum aggregate data rate : 41.25 Gps (4 x 10.3125Gbit/s)
Maximum throughput : 82.5 Gbps (Tx and Rx)
Copper link length : 10m (active limiting)
Connector : High-Density QSFP 38-PIN
Power Supply : +3.3V
Low power consumption : 1.5 W (typ.)
Temperature Range : 0~ 70 °C
MOQ : Negotiable
Price : Negotiable
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OPTOSTAR 4x10Gbps QSFP+ Direct Attach Cables OP--C768-XXC


  • QSFP+ conforms to the Small Form Factor SFF8436
  • 4-Channel Full-Duplex Active Copper Cable Transceiver
  • Support for multi-gigabit data rates :1.0 Gbps - 10.3125 Gbps (per channel)
  • Maximum aggregate data rate: 41.25 Gps (4 x 10.3125Gbit/s)
  • Maximum throughput: 82.5 Gbps (Tx and Rx)
  • Copper link length up to 10m (active limiting)
  • High-Density QSFP 38-PIN Connector
  • Power Supply :+3.3V
  • Low power consumption: 1.5 W (typ.)
  • Low crosstalk
  • I2C based two-wire serial interface for easy control and monitoring
  • (management interface acc. SFF-8436)
  • Temperature Range: 0~ 70 °C
  • ROHS Compatible


  • Local Area Networks (LAN)

10 Gigabit Ethernet

40 Gigabit Ethernet

  • High Performance Computing (HPC)

InfiniBand SDR, DDR, QDR

2.5 , 5 Gigabit PCI-Express Extension

Proprietary Interconnect

  • Storage Area Networks (SAN)

2, 4, 8, 10 Gigabit Fibre Channel

Fibre Channel over Ethernet


Supported Standards

SFF-8436 (SFF Committee QSFP document)

QDR 10G InfiniBand

IEEE P802.3ba (Ethernet)

8GFC & 10GFC (Fibre Channel)

Product Description

The QSFP+ cable assemblies are high performance, cost effective I/O solutions for 40G LAN, HPC and SAN applications. QSFP+ copper modules allow hardware manufactures to achieve high port density, configurability and utilization at a very low cast and reduced power budget. The high speed cable assemblies meet and exceed Gigabit Ethernet , InfiniBand and Fibre Channel industry standard requirements for performance and reliability..

Recommended Operating Conditions

Storage Ambient Temperature-40+85°C
Operating Case TemperatureTc0+70°C
Power Supply VoltageVCC33.143.33.47V
Power DissipationPD1.5W



10.3125 Gpbs(per channel) line speed, full duplex

Bit error rate: better than 10E-12


Hot-pluggable, industry-standard Small Form-Factor

Pluggable(QSFP+) copper cable, available up to 10m

Operating parameters

Supply voltage: 3.3V

Power consumption(per end): max 1.5W

Supported Length

Up to 10m typical & customer specific requirements

QSFP+ Host Board Schematic for passive copper cables

Pin Descriptions

2CML-ITx2nTransmitter Inverted Data Input
3CML-ITx2pTransmitter Non-Inverted Data Input
5CML-ITx4nTransmitter Inverted Data Input
6CML-ITx4pTransmitter Non-Inverted Data Input
8LVTTL-IModSelLModule Select
9LVTTL-IResetLModule Reset
10Vcc Rx+3.3V Power Supply Receiver2
11LVCMOSI/OSCL2-wire serial interface clock
12LVCMOSI/OSDA2-wire serial interface data
14CML-ORx3pReceiver Non-Inverted Data Output
15CML-ORx3nReceiver Inverted Data Output
17CML-ORx1pReceiver Non-Inverted Data Output
18CML-ORx1nReceiver Inverted Data Output
21CML-ORx2nReceiver Inverted Data Output
22CML-ORx2pReceiver Non-Inverted Data Output
24CML-ORx4nReceiver Inverted Data Output
25CML-ORx4pReceiver Non-Inverted Data Output
27LVTTL-OModPrsLModule Present
29Vcc Tx+3.3V Power supply transmitter2
30Vcc1+3.3V Power supply2
31LVTTL-ILPModeLow Power Mode
33CML-ITx3pTransmitter Non-Inverted Data Input
34CML-ITx3nTransmitter Inverted Data Input
36CML-ITx1pTransmitter Non-Inverted Data Input
37CML-ITx1nTransmitter Inverted Data Input

Note 1: GND is the symbol for signal and supply (power) common for the QSFP+ module. All are common within the QSFP+ module and all module voltages are eferenced to this potential unless otherwise noted. Connect these directly to the host board signal-common ground plane.

Note 2: Vcc Rx, Vcc1 and Vcc Tx are the receiver and transmitter power supplies and shall be applied concurrently. Requirements defined for the host side of the Host Edge Card Connector are listed in Table 6. Recommended host board power supply filtering is shown in Figure 4. Vcc Rx Vcc1 and Vcc Tx may be internally connected within the QSFP+ Module module in any combination. The connector pins are each

rated for a maximum current of 500 mA.

QSFP+ Memory Map

Ordering information

Part NumberProduct Description
OP-C768-XXC4 x 10Gbps QSFP+ Direct Attach Cables, up to 10m (24AWG),0ºC ~ +70ºC

1) How can I place order?

A: You can contact us by email about your order details, or place order on line.

2) How can I pay you?
A: After you confirm our PI, we will request you to pay. T/T (HSBC bank) and Paypal, Western Union are the most usual ways we are using.

3) What's the order procedure?
A: First we discuss order details, production details by email or TM. Then we issue you an PI for your confirmation. You will be requested to do pr -epaid full payment or deposit before we go into production. After we get the deposit, we start to process the order. We usually need 7-15days if we don't have the items in stock. Before production has been finished, we will contact you for shipment details, and the balance payment. After payment has been settled, we start to prepare the shipment for you.

4) How do you take care when your clients received defective products?
A: replacement. If there are some defective items, we usually credit to our customer or replace in next shipment.

5) How do you check all the goods in the production line?
A: We have spot inspection and finished product inspection. We check the goods when they go into next step production procedure.

Company Introduce

Shenzhen Optostar Optoelectronics Co., Ltd. was founded in May 2006 and headquartered in Nanshan District, Shenzhen, China. As a leading manufacturer and supplier for fiber optical components and system products in China, we can provide our customers with active components such as GPON/EPON, all serial SFP transceivers, Media Converters, PDH multiplexers, EDFAs, Video Multiplexers which are used for telecommunication, network and security. We are also producing passive components such as Patch Cords, CWDM, DWDM, PLC splitters and so on.

Our company has a lot of advantages based on 10 years of experience in the optical telecommunication industry: Perfect techniques and producing plant, Abundant technology development capability with 10 persons R&D team, Rich OEM & ODM co-operation experience with famous overseas companies, Strong ability to provide whole network solutions. We owned 2 production plants which the total area is more than 6000sqm and more than 300 workers and 50 technicians and 1 headquarter office which has sales team of around 30 persons. After more than ten years of operation, Optostar has successfully developed the worldwide market. Our products are widely accepted by the customer from all of the world and win good reputations by themselves. We promise to provide our customers with high quality products and nice services. To achieve your 100% satisfaction is our persistent goal all along!

Product Tags:

optical fiber devices


optical communication devices

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QSFP+ Direct Attach Cable Images

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