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Juniper / Juniper direct-attach copper cables

Juniper EX-QSFP-40GE-DAC-50CM · 740-044512

P/N: 740-044512

DACEX-QSFP-40GE-DAC-50CM

Juniper optical module or interconnect cable. Confirm platform/Junos compatibility, fiber, connectors, length, breakout and FEC. Reach applies to the stated profile, not every link. Speed: 40 Gigabit Ethernet · Form Factor: QSFP+ · Connector: None · 40GBASE-DAC / Distance: 0.5 m

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Juniper EX-QSFP-40GE-DAC-50CM · 740-044512 — Specification schematic, not a product photograph or installation drawing.
Specification schematic, not a product photograph or installation drawing. Citadex Systems · Specification source
01 / Specifications
MPN / P/N
740-044512
Manufacturer model
EX-QSFP-40GE-DAC-50CM
Part Number
740-044512
Speed
40 Gigabit Ethernet
Breakout Capable
No
Form Factor
QSFP+
Product Type
DAC
Connector
None
40GBASE-DAC / Cable type
Twinax copper
40GBASE-DAC / Distance
0.5 m
40GBASE-DAC / Maximum Power consumption (W)
0.5 W
40GBASE-DAC / Signaling rate, each lane
40-Gbps full-duplex serial transmission
40GBASE-DAC / Wire AWG
30 AWG
Documented selection limits
Reach, rate, form factor and breakout support apply only to the listed standard/mode, fiber grade and platform/port configuration. Keep source qualifiers for FEC, attenuation, transmit/receive limits, temperature, active/passive operation and cable ends. Check Juniper HCT for the exact host, interface module, port mode, Junos release, required QSA adapter and qualifications before ordering. Do not infer universal interoperability or combine power/temperature/reach across model profiles. Optical link budgets are not calculated or inferred.
Integral-cable metadata note
HCT Connector=None is integral DAC/AOC metadata, not an absence of cable ends. Verify end form factors and breakout against the exact manufacturer profile.

Specification source: Juniper ↗
Checked against documentation: 19.10.2026

Reference catalogue for quotation requests. Availability, production status, condition, price, lead time and warranty are individually confirmed. A listed part number is not a stock claim.

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