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Lenovo SFP28 passive DAC cable, 3.28 ft, silver connectors on black cable

Lenovo

Lenovo 7Z57A03557 SFP28 passive DAC 3.28 ft network ethernet cable

SKU CH-8PBM-ZAYSB MPN 7Z57A03557

A 3.28 ft passive SFP28 direct-attach cable for short-range network links

  • Cable categorySFP28
  • First connectorSFP28 Network
  • Overall length3.28 ft (1 m)
  • Key featuresFeatures:Passive
  • SFP28 passive cable connects switches and servers directly
  • 28 ft length suits short rack-to-rack runs
  • Passive design needs no external power supply
  • SFP28 connectors fit standard SFP28 ports
  • Lenovo 7Z57A03557 model ensures genuine Lenovo compatibility

Lenovo SFP28 Passive DAC Cable

This Lenovo 7Z57A03557 cable uses SFP28 connectors on both ends to link networking equipment directly. The passive design requires no external power source for operation. It measures 3.28 ft in length for short-range rack connections.

Suitable for Direct Rack Links

This cable suits administrators connecting switches, servers or storage within the same rack using SFP28 ports. It is not for links requiring longer reach than 3.28 ft or for ports using a different connector type.

Passive 3.28 ft SFP28 Reach

The 3.28 ft length determines whether this cable fits the physical gap between your SFP28 ports. Verify the distance before purchase to ensure the passive assembly meets your rack layout needs.

How it compares

Measured against everything we stock in Ethernet & LAN Cables, at today’s prices. Recalculated every night.

Price $58.99
Pricier than about 86% of the 9,945 comparable items (median $14.99).

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Specifications

Product
Brand nameLenovo
Connectivity
Cable categorySFP28
Ports & slots
First connectorSFP28 Network
Size & build
Overall length3.28 ft (1 m)
Shipping weight0.91 kg
Package size203 × 102 × 51 mm

Questions about this item

Will the 3.28 ft SFP28 passive DAC reach between adjacent top-of-rack switches?

At 3.28 ft the cable spans roughly one metre, which is the typical spacing for side-by-side rack switches, so it reaches without excess slack.

Do I need any tools or drivers to install the SFP28 passive DAC?

No tools or drivers are required; insert each SFP28 connector until the latch clicks, but the step often missed is removing the dust caps from both ends before insertion.

How do I know when the passive SFP28 DAC should be replaced?

Replace the cable if link lights fail to illuminate, error counters climb on the switch ports, or the latch no longer holds the module firmly in the cage.

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