DS-SFP-FC32G-SW – 32Gbps Fibre Channel SW SFP+

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DS-SFP-FC32G-SW Description

DS-SFP-FC32G-SW is Cisco’s 32-Gbps Fibre Channel shortwave SFP+ transceiver for MDS 9000 Series, providing autosensing 8/16/32-Gbps FC connectivity over multimode fiber with LC interface. Also referred to as a Cisco 32G FC SW SFP+ or 32G shortwave FC transceiver, it supports up to 100 m on OM4/OM5 and 70 m on OM3 at 32G, with longer reaches at 16G and 8G, making it ideal for high-performance SAN access and ISLs within the data center . Optical performance is specified at +2.0 to −6.2 dBm transmit and +2.0 to −8.2 dBm receive average power, and the module operates from 0 to 70°C, meeting FC-PI-6/5/4 standards and Class 1 laser safety requirements . Note for 32G modules: only SW and LW optics are supported and 2G speeds aren’t supported; NX-OS 8.x or later is required for 32G module operation .

Product Highlights

Data Rate
Maximum Reach
Power Consumption

Cabling Characteristics

  • Connector type: LC (PC or UPC)
  • Media: MMF
  • Cable type: Duplex fiber
  • Breakout capable: not specified
  • Fiber grade: OM2, OM3, OM4/OM5
  • Core size (microns): 50, 50, 50
  • Modal bandwidth (MHz·km): 500, 2000, 4700
  • Maximum reach: 100 m
  • Standards: FC-PI-6; SFF-8432; SFF-8472; SFF-8431
  • Notes: OM2 20 m; OM3 70 m; OM4/OM5 100 m

Optical Characteristics

  • Wavelength: 850 nm
  • Transmit power range: −6.2 to 2.0 dBm
  • Receive power range: −10.2 to 2.0 dBm
  • Max. channel insertion loss: not specified
  • Notes: —

Physical and Operational Characteristics

  • Operating temperature: 0 to 70 °C
  • Storage temperature: −40 to 85 °C
  • DOM capable: Yes
  • Power consumption: 1 W
  • Bail/pull tab color: not specified
  • Form factor: SFP+
  • Dimensions (H × W × D): 8.5 × 13.55 × 56.5 mm
  • Weight: 22.5 g
  • Current warranty: 5 years

Product Comparison

Parameter

DS-SFP-FC32G-SW

DS-SFP-FC32G-LW

DS-SFP-FC64G-SW

Type / form factor

32G FC SW SFP+, LC

32G FC LW SFP+, LC

64G FC SW SFP+, LC

Autosensing data rates

8/16/32 Gbps

8/16/32 Gbps

16/32/64 Gbps

Wavelength

850 nm

1310 nm

850 nm

Fiber type

MMF (OM2/OM3/OM4/OM5)

SMF (OS2)

MMF (OM2/OM3/OM4/OM5)

Connector

LC duplex (dual-LC)

LC duplex

LC duplex (dual-LC)

32G reach (OM3 / OM4)

70 m / 100 m

— (64G table; 32G: 100m OM3 /125m OM4)

32G reach (SMF)

10 km

16G reach (OM3 / OM4)

100 m / 125 m

10 km (SMF)

100 m / 125 m

8G reach (OM3 / OM4)

150 m / 190 m

10 km (SMF)

150 m / 190 m

Minimum cable distance

2 m

2 m

2 m

Avg Tx power (max / min)

+2.0 / −6.2 dBm

+2.0 / −5.0 dBm

+4.0 / −7.5 dBm

Avg Rx power (max / min)

+2.0 / −8.2 dBm

+2.0 / −11.4 dBm

+4.0 / −7.0 dBm

Operating temperature

0 to 70°C

0 to 70°C

0 to 70°C

Dimensions (H×W×D)

8.5 × 13.55 × 56.5 mm

8.5 × 13.55 × 56.5 mm

8.5 × 13.55 × 56.5 mm

Standards / safety

FC-PI-6/5/4; Class 1 laser

FC-PI-6/5/4; Class 1 laser

FC-PI-6/5/4; Class 1 laser

Software / support notes

32G module supports SW & LW; NX-OS 8.x+

Same 32G module note applies

64G family; standard NX-OS support

DS-SFP-FC32G-SW Device Compatibility Reference

DownloadDS-SFP-FC32G-SW-Device-Compatibility.pdf

Specifications

Parameter Specification Parameter Specification
Product ID DS-SFP-FC32G-SW (spare: DS-SFP-FC32G-SW=) Form Factor SFP+, Fibre Channel
Type / Wavelength Shortwave, 850nm Connector Dual LC (duplex)
Supported FC Rates 8/16/32Gbps autosensing Fiber MMF (OM2/OM3/OM4/OM5)
Reach @32G (28.05Gbd) OM2 20m; OM3 70m; OM4/OM5 100m Reach @16G (14.025Gbd) OM2 35m; OM3 100m; OM4/OM5 125m
Reach @8G (8.5Gbd) OM2 50m; OM3 150m; OM4/OM5 190m Min Cable Distance 2m
Optical Tx Power Max 2.0dBm; Min -6.2dBm Optical Rx Power Max 2.0dBm; Min -8.2dBm
Operating Temperature 0–70°C Storage Temperature -40–85°C
Dimensions (HxWxD) 8.5×13.55×56.5mm Regulatory/Standards FC-PI-4/5/6; Laser Class I
Platform Note Only SW/LW on 32G module; NX-OS 8.x or later Ordering DS-SFP-FC32G-SW / DS-SFP-FC32G-SW=

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Quality Certifications

Customer Reviews

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    Sarah Jenkins
    Posted on 20/07/2024
    Verified Buyer
    5.0

    Genuine items. We verified the serial numbers and everything checked out perfectly. Trustworthy seller.

    David Chen
    Posted on 15/05/2024
    Verified Buyer
    5.0

    Packaging was excellent. Anti-static bags and proper padding. Arrived safely.

    Logistics Manager
    Posted on 12/03/2024
    Verified Buyer
    5.0

    Delivery was surprisingly fast. We expected a delay but it arrived two days early.

    Michael Ross
    Posted on 05/11/2023
    Verified Buyer
    5.0

    The sales team was very responsive to my emails. Got a quote within an hour.

Questions & Answers

  • In an all-flash environment, when does DS-SFP-FC32G-SW provide measurable gains over 16G SW links, and how should I validate improvements objectively?

    32G halves oversubscription and improves burst handling for NVMe-over-FC or heavy VMotion. Validate with synthetic benchmarks and production replicas, tracking IOPS, latency percentiles, and buffer credit utilization before and after migration.
  • What distance and fiber type constraints should I budget for when deploying DS-SFP-FC32G-SW in a dense ToR fabric with multiple jumpers?

    Plan ~70 m on OM3 and ~100 m on OM4, counting every mated pair. Keep jumpers high-quality, minimize patches, and verify total insertion loss. If you must exceed, redesign to single-mode 32G LW.
  • Are there backward-compatibility pitfalls when connecting DS-SFP-FC32G-SW ports to older 16G arrays during phased upgrades?

    32G ports usually negotiate down to 16G, but confirm HBA and array firmware. Pin speeds temporarily if autoneg causes flaps, and monitor credits to ensure latency and buffering match the negotiated rate.
  • How can I prevent slow-drain conditions after introducing DS-SFP-FC32G-SW while some hosts remain at lower speeds?

    Segment traffic with VSANs, validate HBA queue depth and firmware, and avoid oversubscribing ISLs. Enable slow-drain detection and remediate misbehaving initiators quickly to protect 32G paths.
  • What DOM and telemetry routines are most effective for proactively maintaining DS-SFP-FC32G-SW health in busy SANs?

    Record baseline DOM immediately after turn-up, set trend alerts at conservative thresholds, and stream counters to your monitoring stack. Regularly scan for CRCs and credit starvation to catch degradation early.
  • Can DS-SFP-FC32G-SW be aggregated in SAN port-channels to scale bandwidth without immediate forklift upgrades to every host?

    Yes. Build port-channels with identical member characteristics. This lets you scale aggregate throughput, increase resiliency, and transition hosts incrementally to 32G over time.
  • Do DS-SFP-FC32G-SW optics change SAN zoning or NVMe/FC enablement on Cisco MDS?

    No. Zoning and protocol enablement are logical. The optic only affects the physical layer. Ensure firmware and HBAs support NVMe/FC; optics simply deliver the necessary physical signal.
  • What operational playbook should I follow when replacing SW optics during a code upgrade to avoid protracted outages?

    Upgrade one fabric, drain sensitive flows, replace optics with labeled spares, verify link/DOM, then restore traffic. Repeat on the second fabric. Keep rollback optics and document which ports were touched.
  • How do I distinguish between bad fiber versus failing DS-SFP-FC32G-SW when counters spike under load?

    Swap fibers with a known-good pair, move optics across ports, and compare DOM readings. If errors follow the fiber, clean/replace jumpers. If they follow the optic, open an RMA after eliminating slot issues.
  • Is there any advantage to standardizing on OM4 for all DS-SFP-FC32G-SW runs even when some distances are short?

    Yes. OM4 improves margin and longevity, tolerates additional patch points, and simplifies spares. It reduces risk during re-patching and future rack moves compared with mixed lower-grade multimode.

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  • DS-SFP-FC32G-SW Datasheet

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