NetAPI 100G QSFP28 optical transceiver, front view

100 G - QSFP28

Single Mode / 100 M / Cisco
$275.00
$275.00
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NetAPI 100G QSFP28 optical transceiver, front view
  • NetAPI 100G QSFP28 optical transceiver, front view
  • NetAPI 100G QSFP28 optical transceiver, side profile
  • NetAPI 100G QSFP28 transceiver, angled detail
  • NetAPI 100G QSFP28 transceiver showing MPO-12 connector
  • NetAPI 100G QSFP28 transceiver in spine-leaf deployment
  • NetAPI 100G QSFP28 optical transceiver, front view
  • NetAPI 100G QSFP28 optical transceiver, side profile
  • NetAPI 100G QSFP28 transceiver, angled detail
  • NetAPI 100G QSFP28 transceiver showing MPO-12 connector
  • NetAPI 100G QSFP28 transceiver in spine-leaf deployment
100 G - QSFP28

100 G - QSFP28

$275.00
$275.00
Device interface
Reach
Vendor Name

QSFP28 — 100G. The current 100G data-center fabric standard.

Overview

Quad SFP28, SFF-8665. Four 25.78 Gbps NRZ lanes in one module; the dominant 100G transceiver in production data centers as of 2026. Breakout to 4×25G SFP28 is supported on most platforms and is the standard topology for high-density ToR designs.

Key specifications

Speed 100G
Electrical interface 4 lanes × 25.78125 Gbps NRZ SerDes
Signalling Per-lane 64B/66B NRZ
FEC RS-FEC (528,514) required and on by default
Typical power draw 2.5 W – 5 W per module (up to 6 W for coherent 100ZR)
Connectors MPO-12 (SR4, PSM4), LC duplex (LR4, ER4, CWDM4, 100ZR)
MSA / standards SFF-8665 (mechanical); SFF-8636 (management)
Introduced 2014 (IEEE 802.3bm)

Available variants

Part number Standard Wavelength Fiber Reach Notes
NAP-QSFP28-SR4 100GBASE-SR4 850 nm MM OM3/4 70 / 100 m MPO-12
NAP-QSFP28-LR4 100GBASE-LR4 1295–1310 nm LAN-WDM SM 10 km LC duplex
NAP-QSFP28-ER4 100GBASE-ER4 1295–1310 nm LAN-WDM SM 40 km SOA-based
NAP-QSFP28-CWDM4 100G CWDM4 MSA 1271/91/11/31 nm SM 2 km Lower-cost LR4 alternative
NAP-QSFP28-PSM4 100G PSM4 MSA 1310 nm SM parallel 500 m – 2 km MPO-12, 4 parallel SM
NAP-QSFP28-DR 100GBASE-DR (1 lane) 1310 nm SM 500 m Single λ PAM4
NAP-QSFP28-100ZR 100G coherent ZR C-band SM 80–120 km DSP-based, OIF 400ZR-Light
NAP-QSFP28-DAC-1M…5M 100G DAC — Twinax 1–5 m Passive
NAP-QSFP28-BREAKOUT-3M 100G → 4×25G DAC — Twinax 3 m ToR breakout

Coded for these platforms

Every NetAPI QSFP28 module is OEM-coded for the target switch and validated against current production firmware. Common targets:

  • Cisco Nexus 9300-FX/FX2/FX3/GX, Catalyst 9500/9600
  • Juniper QFX5120/5130/5200/5220, QFX10K, MX10K
  • Arista 7050X3, 7060X2/X4/X5, 7280R3, 7500R/R3, 7800R
  • Dell S5232F/S5248F, Z9264F/Z9332F
  • Aruba CX 8400/9300/10000
  • NVIDIA Spectrum-2/3/4

Recommended for

  • Spine-leaf interconnects in modern data centers
  • AI/ML training fabric (100G RoCE)
  • Metro DCI on dark fiber (coherent ZR variants)
  • High-density 25G ToR via 4×25G breakout

Engineering notes

  • CWDM4 (MSA, 2 km) and LR4 (IEEE 802.3bm, 10 km) are not interoperable — different wavelength plans. Always match the standard, not just the reach.
  • Coherent 100ZR is increasingly the default for metro DCI — better impairment tolerance than direct-detect ZR4, and now competitively priced.

Need a coding or reach you don't see? NetAPI custom-codes against the full Cisco, Juniper, Arista, Dell, HPE, Aruba, Palo Alto, Huawei, and NVIDIA OUI sets. Contact us with your switch model and we'll quote.

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