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Black SFP+ direct attach cable 3.28 ft twinaxial assembly

D-Link

D-Link DEM-CB100S 3.28 ft 10G SFP+ passive direct attach cable

SKU CH-MZGD-N10DX MPN DEM-CB100S

One-metre passive SFP+ twinaxial cable carrying 10 Gbps Ethernet between compatible switches

  • Cable categoryTwinaxial
  • Product typeConsumer Electronics
  • Overall length3.28 ft (1 m)
  • Product colorBlack
  • Key featuresDevice Rate: 10 Gbit/s Gigabit Ethernet Connector Type : SFP
  • 10 Gbps throughput for short-range links
  • 28 ft twinaxial cable keeps racks tidy
  • SFP+ connectors fit D-Link 10GbE switches directly
  • 5 mm bend radius eases dense patching
  • Passive copper design needs no external power

Direct-Attach Cable for 10GbE Switches

The D-Link DEM-CB100S is a 3.28 ft passive twinaxial cable with SFP+ connectors on both ends. It provides a 10 Gbps link between compatible D-Link aggregation and stackable switches without a separate transceiver module. The 100 Ohm characteristic impedance and black jacket suit standard rack deployments.

Passive Design Means Zero Power Draw

Because the assembly is passive it consumes no power and generates no heat during normal operation. No active electronics are present, so the cable adds no audible noise to the rack. The only electrical limits are the 30 V AC and 0.5 A ratings printed on the specification sheet.

Sustained Throughput at Rated Length

The 1 metre length supports continuous 10 Gbps traffic without the signal degradation that longer passive runs can exhibit. Minimum bend radius of 23.5 mm (0.93 inches) must be observed during routing to maintain performance. Builders needing longer reach or active signal conditioning should select an active optical or active copper alternative instead.

How it compares

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

Price $73.99
Pricier than about 90% of the 9,945 comparable items (median $14.99).

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Specifications

Product
Brand nameD-Link
Model nameDEM-CB100S
Product typeConsumer Electronics
Product colorBlack
Connectivity
Cable categoryTwinaxial
Size & build
Overall length3.28 ft (1 m)
Shipping weight0.45 kg
Package size432 × 305 × 127 mm

Questions about this item

How do I install the SFP+ connectors on the DEM-CB100S without damaging the cable?

Insert each SFP+ module straight into the switch port until it clicks; never force it at an angle. Keep every bend radius at or above 23.5 mm (0.93 inches) to protect the twinaxial conductors.

What maintenance or replacement should I plan for the DEM-CB100S over time?

The passive copper assembly has no firmware or active components to service. Inspect the SFP+ latch tabs and cable jacket during routine rack audits; replace the cable if connectors loosen or the jacket shows kinks tighter than 23.5 mm.

What is the first limit I will hit when running the DEM-CB100S at 10 Gbps continuously?

The 3.28 ft length is the primary constraint; passive SFP+ DACs are specified for short reach, so signal integrity degrades beyond this distance before thermal or voltage limits (30 V AC, 0.5 A) become factors.

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