Broadcom BCM4398 Wi-Fi 7 Enterprise Access Point Module

Broadcom BCM4398 Wi-Fi 7 Enterprise Access Point Module

Brand: Broadcom | Category: Wireless Access Points

SKU: BROA-BCM4398XKMLG | Part #: BCM4398XKMLG | MPN: BCM4398XKMLG

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About the Broadcom BCM4398 Wi-Fi 7 Enterprise Access Point Module

The Broadcom BCM4398 is a purpose-built Wi-Fi 7 (IEEE 802.11be) chipset module engineered for enterprise-grade access point designs launched in Q1 2025. Built on an advanced CMOS process node, the BCM4398 integrates a tri-band radio architecture spanning 2.4 GHz, 5 GHz, and 6 GHz simultaneously, enabling aggregate PHY rates exceeding 10 Gbps in optimal configurations. The silicon natively supports 320 MHz channel bandwidth operation in the 6 GHz band, 4096-QAM modulation, and up to 16 spatial streams across all bands combined, representing a substantial generational leap over Wi-Fi 6E predecessors.

A defining capability of the BCM4398 is its full implementation of Multi-Link Operation (MLO), allowing client devices to simultaneously transmit and receive data across multiple bands and channels. This architecture dramatically reduces latency, improves reliability through link redundancy, and maximizes spectrum utilization in congested enterprise RF environments. The chipset also incorporates advanced OFDMA scheduling with multi-RU puncturing, enabling access points to serve dozens of concurrent clients with deterministic quality of service — critical for high-density deployments such as conference centers, stadiums, and open-plan offices.

Broadcom's enterprise heritage is evident in the BCM4398's integrated security engine, which supports WPA3-Enterprise with 192-bit security mode, Enhanced Open (OWE), and Protected Management Frames as mandatory features. The module exposes PCIe 3.0 host interfaces and integrates RF front-end management signaling, simplifying board design and accelerating time-to-market for next-generation access point platforms. Its power management architecture supports dynamic spatial multiplexing power save modes, balancing maximum throughput against thermal and power envelope constraints essential for ceiling-mount and wall-plate form factors.

Ideal for

  • High-density enterprise campus access points serving hundreds of simultaneous Wi-Fi 7 clients across multi-story office buildings with seamless multi-link roaming
  • Stadium and large venue deployments requiring 320 MHz 6 GHz channel utilization to sustain multi-gigabit aggregate throughput across thousands of connected devices
  • Healthcare facility wireless infrastructure supporting latency-sensitive applications such as real-time patient monitoring, VoIP, and AR-assisted surgical guidance over MLO links
  • Education campus Wi-Fi 7 access point rollouts enabling high-throughput 4K/8K video streaming and collaborative cloud applications across lecture halls and dormitories
  • Hospitality and convention center infrastructure providing guaranteed per-client throughput SLAs for business travelers using bandwidth-intensive unified communications platforms
  • Industrial IoT and smart manufacturing environments leveraging Wi-Fi 7 deterministic low-latency transmission for time-sensitive machine control and vision inspection systems

Technical specifications

ManufacturerBroadcom
ModelBCM4398
Wi-Fi StandardIEEE 802.11be (Wi-Fi 7), backward compatible with 802.11a/b/g/n/ac/ax
Radio ArchitectureTri-band simultaneous (2.4 GHz + 5 GHz + 6 GHz)
Maximum Channel Bandwidth320 MHz (6 GHz band); 160 MHz (5 GHz band); 40 MHz (2.4 GHz band)
Maximum Spatial Streams16 streams total (4×4 per band typical configuration)
Maximum Modulation4096-QAM (EHT)
Maximum Aggregate PHY RateUp to 10+ Gbps (tri-band combined)
Multi-Link Operation (MLO)Full MLO support: simultaneous transmit/receive across multiple bands and channels per client
OFDMADownlink and Uplink OFDMA with multi-RU puncturing support
MU-MIMODownlink and Uplink MU-MIMO, up to 16 simultaneous MU streams
SecurityWPA3-Personal, WPA3-Enterprise (192-bit mode), OWE (Enhanced Open), IEEE 802.11w Protected Management Frames (mandatory)
Host InterfacePCIe 3.0 (x1/x2)
RF Front-End InterfaceIntegrated RF front-end control and management signaling
Frequency Bands2.400–2.484 GHz; 5.150–5.850 GHz; 5.925–7.125 GHz (6 GHz, region-dependent)
BSS ColoringSupported (enhanced spatial reuse for high-density deployments)
Target SegmentEnterprise access point designs (indoor ceiling-mount, wall-plate, outdoor)
Launch DateQ1 2025
Form FactorModule (integration)
Operating Temperature0°C to +70°C (commercial); extended industrial range per design
Regulatory ComplianceFCC, CE, IC, MIC; Wi-Fi Alliance Wi-Fi 7 certified ecosystem
Power ManagementDynamic spatial multiplexing power save; TWT (Target Wake Time) support for IoT client efficiency

Available from Omnixon Global. Submit an RFQ and our team will confirm configuration and availability for your order.

Technical Specifications

BrandBroadcom
CategoryWireless Access Points
SKUBROA-BCM4398XKMLG
Part NumberBCM4398XKMLG
ConditionNew
ModelBCM4398
Wi-Fi StandardIEEE 802.11be (Wi-Fi 7), backward compatible with 802.11a/b/g/n/ac/ax
Radio ArchitectureTri-band simultaneous (2.4 GHz + 5 GHz + 6 GHz)
Maximum Channel Bandwidth320 MHz (6 GHz band); 160 MHz (5 GHz band); 40 MHz (2.4 GHz band)
Maximum Spatial Streams16 streams total (4×4 per band typical configuration)
Maximum Modulation4096-QAM (EHT)
Maximum Aggregate PHY RateUp to 10+ Gbps (tri-band combined)
Multi-Link Operation (MLO)Full MLO support: simultaneous transmit/receive across multiple bands and channels per client
OFDMADownlink and Uplink OFDMA with multi-RU puncturing support
MU-MIMODownlink and Uplink MU-MIMO, up to 16 simultaneous MU streams
SecurityWPA3-Personal, WPA3-Enterprise (192-bit mode), OWE (Enhanced Open), IEEE 802.11w Protected Management Frames (mandatory)
Host InterfacePCIe 3.0 (x1/x2)
RF Front-End InterfaceIntegrated RF front-end control and management signaling
Frequency Bands2.400–2.484 GHz; 5.150–5.850 GHz; 5.925–7.125 GHz (6 GHz, region-dependent)
BSS ColoringSupported (enhanced spatial reuse for high-density deployments)
Target SegmentEnterprise OEM access point designs (indoor ceiling-mount, wall-plate, outdoor)
Launch DateQ1 2025
Form FactorModule (OEM integration)
Operating Temperature0°C to +70°C (commercial); extended industrial range per OEM design
Regulatory ComplianceFCC, CE, IC, MIC; Wi-Fi Alliance Wi-Fi 7 certified ecosystem
Power ManagementDynamic spatial multiplexing power save; TWT (Target Wake Time) support for IoT client efficiency

Frequently Asked Questions about Broadcom BCM4398 Wi-Fi 7 Enterprise Access Point Module

What does the Broadcom BCM4398 Wi-Fi 7 Enterprise Access Point Module do?

The Broadcom BCM4398 Wi-Fi 7 Enterprise Access Point Module is enterprise networking hardware for data-center, campus, and branch deployments. Common roles include core/distribution switching, server uplinks, top-of-rack fabric, and edge connectivity in mixed Cisco/Juniper/Arista environments.

What are the headline specs of the Broadcom BCM4398 Wi-Fi 7 Enterprise Access Point Module?

Key specifications for the Broadcom BCM4398 Wi-Fi 7 Enterprise Access Point Module: new condition; manufacturer Broadcom; model BCM4398; wi-fi standard IEEE 802.11be (Wi-Fi 7), backward compatible with 802.11a/b/g/n/ac/ax; radio architecture Tri-band simultaneous (2.4 GHz + 5 GHz + 6 GHz); maximum channel bandwidth 320 MHz (6 GHz band); 160 MHz (5 GHz band); 40 MHz (2.4 GHz band); maximum spatial streams 16 streams total (4×4 per band typical configuration). Manufacturer part number BCM4398XKMLG. For the full datasheet with electrical, environmental, and compliance details, contact our pre-sales engineering team.

Is the Broadcom BCM4398 Wi-Fi 7 Enterprise Access Point Module compatible with my infrastructure?

The Broadcom BCM4398 Wi-Fi 7 Enterprise Access Point Module interoperates with standard switching protocols (LACP, MLAG/VPC, 802.1Q, OSPF/BGP). For specific cross-vendor scenarios — Cisco-to-Arista MLAG peering, fabric integration with Cumulus/SONiC, or migration from legacy Catalyst — our network engineers map a compatibility plan as part of the RFQ.