Spring Optical Communication is one of the largest and best 200g qsfp-dd direct attach cable manufacturers and suppliers with rich experience. Welcome to buy our high quality products or wholesale our customized 200g qsfp-dd direct attach cable in stock with our factory. Also, free sample is also available if necessary.
What is 200G QSFP-DD Direct Attach Cable for Data Centers?
200G QSFP-DD Direct Attach Cable is a high-speed passive copper cable designed for short-reach 200G data center interconnects, and is widely used alongside solutions such as QSFP+ DAC Cable and DAC cable QSFP architectures.
It is widely used in switches, servers, storage networks, and high-performance computing systems, providing low insertion loss, low power consumption, and cost-effective high-speed connectivity.
At Spring Optical, a reliable china qsfp+direct attach cable manufacturer, we offer 200G QSFP-DD Direct Attach Cable solutions with advanced manufacturing, strict quality control, and flexible OEM services for global data center deployments.
Key Advantages of 200G QSFP-DD Direct Attach Cable
·200G QSFP-DD Direct Attach Cable supports up to 200Gbps data rate for high-speed interconnects
·Passive copper design ensures ultra-low power consumption
·Low insertion loss and low crosstalk for stable signal transmission
·Cost-effective solution for short-distance connections, similar to QSFP+ direct attach cable wholesale deployments
·Pull-to-release latch design for easy installation
Product Features
·QSFP-DD interface supporting 8-channel high-speed transmission
·Optimized cable structure to reduce insertion loss and crosstalk
·Customizable EEPROM for cable identification
·EMI shielding design to reduce interference
·100% factory tested for performance and reliability
Applications of 200G QSFP-DD Direct Attach Cable
·Data center switching and server interconnects
·High-performance computing (HPC) clusters
·Storage area networks (SAN)
·Telecom and wireless infrastructure
·Test and measurement systems
This product is often deployed together with legacy solutions such as 200G QSFP+ Direct Attach Cable (DAC) and QSFP+ DAC Cable in hybrid network environments.
200G QSFP-DD DAC vs AOC
| Feature | QSFP-DD DAC | QSFP-DD AOC |
|---|---|---|
| Medium | Copper | Optical Fiber |
| Distance | Short (≤5m) | Longer (10m+) |
| Power Consumption | Very Low | Higher |
| Cost | Lower | Higher |
| Application | Rack-level | Row-level |
200G QSFP-DD Direct Attach Cable is ideal for short-distance, high-density connections, while AOC is suitable for longer distance transmission.
Customization & OEM Service
Spring Optical offers full customization for 200G QSFP-DD Direct Attach Cable:
·Custom cable lengths (1m–5m or more)
·Different wire gauges (28AWG / 30AWG)
·EEPROM customization
·Labeling and packaging customization
·OEM / ODM support
We support global data center operators and system integrators, including customers sourcing QSFP+ direct attach cable wholesale solutions.
Why Choose Spring Optical
In-house production for high-speed cable assemblies
Strict quality control with full performance testing
Fast delivery and global logistics capability
Extensive experience in data center connectivity solutions
Spring Optical is recognized as a trusted china qsfp+direct attach cable supplier for global markets.
Spring Optical provides reliable and scalable DAC solutions for modern networks.
Related Products
QSFP-DD Active Optical Cable (AOC)
QSFP28 100G DAC Cable
SFP28 25G DAC Cable
Fiber Optic Patch Panel
FAQ
Q: What is 200G QSFP-DD Direct Attach Cable?
A: 200G QSFP-DD Direct Attach Cable is a high-speed passive copper DAC used for short-reach 200G data center interconnects. It delivers low latency, low power consumption, and cost-effective connectivity for modern networks. It is also part of the broader QSFP+ DAC Cable and DAC cable QSFP product family.
Q: Where is 200G QSFP-DD Direct Attach Cable used?
A: It is widely used in data centers, HPC clusters, cloud computing networks, switches, servers, and storage systems. It is commonly deployed together with 200G QSFP+ Direct Attach Cable (DAC) in mixed-speed environments.
Q: What types of DAC cables are available?
A: Main types include:
200G QSFP-DD Direct Attach Cable
200G QSFP+ Direct Attach Cable (DAC)
QSFP+ DAC Cable
DAC cable QSFP
These products cover different speeds and port types for scalable data center deployment.
Q: What is the difference between QSFP+ DAC Cable and 200G QSFP-DD Direct Attach Cable?
A: QSFP+ DAC Cable is mainly used for 40G/100G short-reach connections, while 200G QSFP-DD Direct Attach Cable supports higher bandwidth up to 200Gbps. Both belong to the DAC family but target different network speeds.
Q: How to choose the right DAC cable for your network?
A: To choose the right product, consider:
Data rate (25G / 100G / 200G)
Port type (QSFP+, QSFP-DD)
Distance requirement (typically ≤5m for DAC)
System compatibility
For bulk procurement, many customers choose qsfp+direct attach cable wholesale solutions from a china qsfp+direct attach cable supplier like Spring Optical.
Q: Where to buy 200G QSFP-DD Direct Attach Cable in wholesale?
A: You can purchase from professional manufacturers offering qsfp+direct attach cable wholesale services. Spring Optical provides factory-direct pricing, OEM customization, and global delivery for 200G QSFP-DD Direct Attach Cable and related DAC products.
Get a Quote for 200G QSFP-DD Direct Attach Cable
Looking for a reliable 200G QSFP-DD Direct Attach Cable supplier or QSFP+ DAC Cable manufacturer?
Spring Optical provides high-performance DAC cables with fast delivery and competitive pricing.
👉 Contact us today to get a quotation within 24 hours.
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Technical Specifications
| Parameter | Value |
|---|---|
| Product Name | 200G QSFP-DD Direct Attach Cable |
| Data Rate | Up to 200Gbps (8×25Gbps) |
| Cable Type | Passive Copper Cable |
| Wire Gauge | 28AWG / 30AWG |
| Differential Impedance | 100 ±10 Ohm |
| Insertion Loss | -16.06 dB max @ 13.28 GHz |
| Power Supply | 3.3V |
| Operating Temperature | 0°C ~ 70°C |
| Cable Length | 1.5m / 2.5m (customizable) |
| Standards | IEEE 802.3cd, InfiniBand EDR, RoHS |
High Speed Characteristics
| Parameter | Symbol | Min | Typical | Max | Unit | Note |
|---|---|---|---|---|---|---|
| Differential Impedance | TDR | 90 | 100 | 110 | Ω | |
| Insertion loss | SDD21 | -16.06 | -8 | dB | At 13.28 GHz | |
| Differential Return Loss | SDD11 | -12.45 | See 1 | dB | At 0.05 to 4.1 GHz | |
| SDD22 | -3.12 | See 2 | dB | At 4.1 to 19 GHz | ||
| Common-mode to common-mode output return loss | SCC11 SCC22 | -2 | dB | At 0.2 to 19 GHz | ||
| Differential to common-mode return loss | SCD11 SCD22 | -12 | See 3 | dB | At 0.01 to 12.89 GHz | |
| -10.58 | See 4 | dB | At 12.89 to 19 GHz | |||
| Differential to common Mode Conversion Loss | SCD21-IL | -10 | dB | At 0.01 to 12.89 GHz | ||
| See 5 | dB | At 12.89 to 15.7 GHz | ||||
| -6.3 | dB | At 15.7 to 19 GHz |
Notes:
Reflection Coefficient given by equation SDD11(dB) < -16.5 + 2 × SQRT(f), with f in GHz
Reflection Coefficient given by equation SDD11(dB) < -10.66 + 14 × log10(f/5.5), with f in GHz
Reflection Coefficient given by equation SCD11(dB) < -22 + (20/25.78)×f, with f in GHz
Reflection Coefficient given by equation SCD11(dB) < -15 + (6/25.78)×f, with f in GHz
Reflection Coefficient given by equation SCD21(dB) < -27 + (29/22)×f, with f in GHz
QSFP-DD Pin Function Definition
| Pin | Logic | Symbol | Description |
|---|---|---|---|
| 1 | GND | Ground | |
| 2 | CML-I | Tx2n | Transmitter Inverted Data Input |
| 3 | CML-I | Tx2p | Transmitter Non-Inverted Data Input |
| 4 | GND | Ground | |
| 5 | CML-I | Tx4n | Transmitter Inverted Data Input |
| 6 | CML-I | Tx4p | Transmitter Non-Inverted Data Input |
| 7 | GND | Ground | |
| 8 | LVTTL-I | ModSelL | Module Select |
| 9 | LVTTL-I | ResetL | Module Reset |
| 10 | Vcc Rx | +3.3V Power Supply Receiver | |
| 11 | LVCMOS-I/O | SCL | 2-wire serial interface clock |
| 12 | LVCMOS-I/O | SDA | 2-wire serial interface data |
| 13 | GND | Ground | |
| 14 | CML-O | Rx3p | Receiver Non-Inverted Data Output |
| 15 | CML-O | Rx3n | Receiver Inverted Data Output |
| 16 | GND | Ground | |
| 17 | CML-O | Rx1p | Receiver Non-Inverted Data Output |
| 18 | CML-O | Rx1n | Receiver Inverted Data Output |
| 19 | GND | Ground | |
| 20 | GND | Ground | |
| 21 | CML-O | Rx2n | Receiver Inverted Data Output |
| 22 | CML-O | Rx2p | Receiver Non-Inverted Data Output |
| 23 | GND | Ground | |
| 24 | CML-O | Rx4n | Receiver Inverted Data Output |
| 25 | CML-O | Rx4p | Receiver Non-Inverted Data Output |
| 26 | GND | Ground | |
| 27 | LVTTL-O | ModPrsL | Module Present |
| 28 | LVTTL-O | IntL | Interrupt |
| 29 | Vcc Tx | +3.3V Power supply transmitter | |
| 30 | Vcc1 | +3.3V Power supply | |
| 31 | LVTTL-I | LPMode | Low Power Mode |
| 32 | GND | Ground | |
| 33 | CML-I | Tx3p | Transmitter Non-Inverted Data Input |
| 34 | CML-I | Tx3n | Transmitter Inverted Data Input |
| 35 | GND | Ground | |
| 36 | CML-I | Tx1p | Transmitter Non-Inverted Data Input |
| 37 | CML-I | Tx1n | Transmitter Inverted Data Input |
| 38 | GND | Ground | |
| 39 | GND | Ground | |
| 40 | CML-I | Tx6n | Transmitter Inverted Data Input |
| 41 | CML-I | Tx6p | Transmitter Non-Inverted Data Input |
| 42 | GND | Ground | |
| 43 | CML-I | Tx8n | Transmitter Inverted Data Input |
| 44 | CML-I | Tx8p | Transmitter Non-Inverted Data Input |
| 45 | GND | Ground | |
| 46 | Reserved | Reserved | |
| 47 | VS1 | ||
| 48 | VccRx1 | +3.3V Power supply | |
| 49 | VS2 | ||
| 50 | VS3 | ||
| 51 | GND | Ground | |
| 52 | CML-O | Rx7p | Receiver Non-Inverted Data Output |
| 53 | CML-O | Rx7n | Receiver Inverted Data Output |
| 54 | GND | Ground | |
| 55 | CML-O | Rx5p | Receiver Non-Inverted Data Output |
| 56 | CML-O | Rx5n | Receiver Inverted Data Output |
| 57 | GND | Ground | |
| 58 | GND | Ground | |
| 59 | CML-O | Rx6n | Receiver Inverted Data Output |
| 60 | CML-O | Rx6p | Receiver Non-Inverted Data Output |
| 61 | GND | Ground | |
| 62 | CML-O | Rx8n | Receiver Inverted Data Output |
| 63 | CML-O | Rx8p | Receiver Non-Inverted Data Output |
| 64 | GND | Ground | |
| 65 | NC | No Connect | |
| 66 | Reserved | Reserved | |
| 67 | VccTx1 | +3.3V Power supply | |
| 68 | VCC2 | +3.3V Power supply | |
| 69 | Reserved | Reserved | |
| 70 | GND | Ground | |
| 71 | CML-I | Tx7p | Transmitter Non-Inverted Data Input |
| 72 | CML-I | Tx7n | Transmitter Inverted Data Input |
| 73 | GND | Ground | |
| 74 | CML-I | Tx5p | Transmitter Non-Inverted Data Input |
| 75 | CML-I | Tx5n | Transmitter Inverted Data Input |
| 76 | GND | Ground |
| Length (m) | Cable AWG |
| 1.5 | 30 |
| 2.5 | 28 |
Regulatory Compliance
| Feature | Test Method | Performance |
|---|---|---|
| Electrostatic Discharge (ESD) to the Electrical Pins | MIL-STD-883C Method 3015.7 | Class 1 (>2000 Volts) |
| Electromagnetic Interference (EMI) | FCC Class B / CENELEC EN55022 Class B / CISPR22 ITE Class B | Compliant with Standards |
| RF Immunity (RFI) | IEC61000-4-3 | No measurable effect from a 10V/m field (80–1000MHz) |
| RoHS Compliance | RoHS Directive 2011/65/EU and (EU) 2015/863 | Compliant |
| REACH Compliance | REACH Regulation (EC) No 1907/2006 | Compliant |
