40G QSFP+ to QSFP+ Active Direct Attach Copper Cable 24AWG 15M QDR

The 40G QSFP+ to QSFP+ Active Direct Attach Copper Cable is a 15-meter, 24AWG QDR-compatible solution for high-speed, short-reach interconnects. Active circuitry ensures stable 40G links with low latency, and OEM/ODM customization is available.

SKU DAC-40GQSFP-A15 Category
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The 40G QSFP+ to QSFP+ Active Direct Attach Copper (A-DAC) Cable is engineered for high-speed, short-distance interconnects in data centers, enterprise networks, and high-performance computing environments. With a 15-meter length and 24AWG copper construction, this active DAC cable ensures reliable 40G connectivity with enhanced signal integrity over longer short-reach distances compared to passive cables.

Designed for QDR (Quad Data Rate) applications, the cable supports low-latency, high-bandwidth transmission between QSFP+ ports on switches, servers, or storage systems. The active circuitry embedded within the cable compensates for signal attenuation, providing stable and efficient 40G links for demanding network deployments.

Its compact and flexible design reduces cable bulk, improves airflow, and simplifies rack organization. FiberMania also offers OEM/ODM customization, including cable lengths, labeling, and packaging to suit specific deployment or project requirements.

Featured DAC & AOC Cable Solutions

SKU Cable Type Data Rate Form Factor A Form Factor B Wire Type Length
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Cable TypeCopper
Active / PassiveActive
Connector TypeQSFP+ to QSFP+
Cable Gauge24 AWG
Cable Length15 m
Data Rate / Protocol40 Gbps QDR
Features / NotesActive copper | extended reach
  • 40G QSFP+ to QSFP+ active DAC cable, QDR compatible

  • 24AWG copper construction for stable, high-speed transmission

  • 15-meter length for extended short-reach applications

  • Embedded active circuitry to maintain signal integrity

  • Low-latency, energy-efficient performance

  • Plug-and-play design, no external configuration required

  • Compact and flexible for improved airflow and organized cabling

  • OEM/ODM customization available

  • Data center switch-to-switch and server interconnects

  • High-performance computing clusters

  • Enterprise backbone and core network links

  • Storage area networks (SAN) and server farm interconnections

  • Short-reach 40G QSFP+ deployments requiring active signal boosting

FiberMania provides OEM and ODM services for active DAC cables, including custom lengths, labeling, packaging, and branding to meet project-specific requirements or enterprise branding needs.

Customize DAC & AOC High-Speed Cable Solution

Cable Type Passive DAC / Active DAC (ACC) / Active Optical Cable (AOC)
Form Factor SFP+ / SFP28 / QSFP+ / QSFP28 / QSFP56 / QSFP-DD / OSFP
Data Rate 10G / 25G / 40G / 50G / 100G / 200G / 400G / 800G
Cable Length 0.5m–15m (DAC) / 1m–100m (AOC)
Transmission Medium Twinax Copper / Multimode Optical Fiber
Connector Compatibility Cisco / NVIDIA / Arista / Juniper / Dell / HPE / Generic Compatible
Jacket Type PVC / LSZH
EEPROM Coding OEM Compatible Programming Available
Operating Temperature Commercial / Industrial Grade

Q1: What is the supported data rate of this cable?
A: It supports 40G QDR (Quad Data Rate) applications between QSFP+ ports.

Q2: What is the cable length?
A: This model comes in a 15-meter length. Custom lengths are available via OEM/ODM services.

Q3: What is 24AWG?
A: 24AWG indicates the wire thickness suitable for active DAC applications, providing higher signal integrity over longer short-reach distances.

Q4: What is the advantage of an active DAC cable?
A: Active DAC cables have embedded electronics to compensate for signal loss, enabling longer distances and stable high-speed performance.

Q5: Does it require external power?
A: No, the active DAC cable is plug-and-play and powered via the QSFP+ ports.

Q6: Can it be customized?
A: Yes, FiberMania supports OEM/ODM customization including cable length, labeling, packaging, and branding.