HPE Aruba CX Aruba CX 9300
The Aruba CX 9300-32D is a high-density 1U 100/400GbE fixed-configuration spine and leaf switch engineered for hyperscale enterprise datacenters, AI clusters, and cloud service providers. Providing 32 ports of 400GbE QSFP-DD with a total switching bandwidth of 25.6 Tbps, the CX 9300 delivers low latency, massive radix interconnectivity, and full support for EVPN-VXLAN topologies.
Specifications
| Brand | HPE |
|---|---|
| Family | Aruba CX |
| Form factor | 1U fixed 400G switch |
| Released | Apr 2022 |
| Form factor | 1U fixed datacenter switch |
| Ports | 32x 400GbE QSFP-DD ports (backward compatible with 100G/200G) |
| Switching capacity | 25.6 Tbps bidirectional switching bandwidth |
| Forwarding rate | Up to 5.68 Bpps |
| Datacenter features | EVPN-VXLAN, RoCEv2, PFC, ECN, and deep packet telemetry |
| Cooling and power | Hot-swappable 5+1 redundant fans and dual hot-swap power supplies |
Generations
- Previous generation: HPE Aruba CX 8360-32Y4C
Works together
How the HPE Aruba CX Aruba CX 9300 connects to servers, storage and the network: 4 ways, with the parts and products on each path.
iSCSI and NVMe/TCP over Ethernet
Keep the speed the same at all three points: a 25GbE server, a 25GbE switch port and a 25GbE array port. Mixed speeds work but the slowest link sets the pace.
Servers
HPE ProLiant DL325 Gen11 1U rack
HPE ProLiant DL345 Gen11 2U rack
HPE ProLiant DL365 Gen11 1U rack
HPE ProLiant RL300 Gen11 1U rack
HPE ProLiant DL110 Gen11 1U rack
HPE ProLiant DL320 Gen11 1U rack
Adapters for the server
P31324-B21 HPE Ethernet 100Gb 2-port QSFP56 MCX623106AS-CDAT Adapter
BCM957504A5041CC Broadcom NetXtreme-E BCM57504 Quad-Port 100GbE QSFP56 PCIe 4.0 Ethernet Network Adapter
540-BDBX Dell NVIDIA Mellanox ConnectX-6 Dx Dual Port 100GbE QSFP56 PCIe Adapter
540-BDCF Dell Intel E810-CQDA2 Dual Port 100GbE QSFP28 PCIe Gen4 Adapter
Storage
HPE Alletra Storage MP 2U rack
Dell PowerStore 1200T 2U rack
Dell PowerStore 3200T 2U rack
Dell PowerStore 5200T 2U rack
Dell PowerStore 9200T 2U rack
Lenovo ThinkSystem DE6400H 2U rack
Optics
QSFP-100G-SR4 Arista 100GBASE-SR4 QSFP28 Optical Transceiver
QSFP-100G-SR4-S Cisco 100GBASE-SR4 QSFP28 Optical Transceiver
407-BBOY Dell 100GbE QSFP28 SR4 Optical Transceiver (850nm, 100m MPO-12)
File storage (NFS and SMB)
Front-end ports face the clients; back-end ports (on scale-out systems) connect the nodes to each other and need their own switch pair.
Servers
HPE ProLiant DL325 Gen11 1U rack
HPE ProLiant DL345 Gen11 2U rack
HPE ProLiant DL365 Gen11 1U rack
HPE ProLiant RL300 Gen11 1U rack
HPE ProLiant DL110 Gen11 1U rack
HPE ProLiant DL320 Gen11 1U rack
Adapters for the server
P31324-B21 HPE Ethernet 100Gb 2-port QSFP56 MCX623106AS-CDAT Adapter
BCM957504A5041CC Broadcom NetXtreme-E BCM57504 Quad-Port 100GbE QSFP56 PCIe 4.0 Ethernet Network Adapter
540-BDBX Dell NVIDIA Mellanox ConnectX-6 Dx Dual Port 100GbE QSFP56 PCIe Adapter
540-BDCF Dell Intel E810-CQDA2 Dual Port 100GbE QSFP28 PCIe Gen4 Adapter
Storage
HPE Alletra Storage MP 2U rack
Dell PowerStore 1200T 2U rack
Dell PowerStore 3200T 2U rack
Dell PowerStore 5200T 2U rack
Dell PowerStore 9200T 2U rack
Dell PowerScale F900 2U rack
Optics
QSFP-100G-SR4 Arista 100GBASE-SR4 QSFP28 Optical Transceiver
QSFP-100G-SR4-S Cisco 100GBASE-SR4 QSFP28 Optical Transceiver
407-BBOY Dell 100GbE QSFP28 SR4 Optical Transceiver (850nm, 100m MPO-12)
Hyperconverged cluster
Plan at least two 25GbE ports per node to two switches; all-NVMe clusters often move to 100GbE.
HCI nodes
HPE SimpliVity 325 Gen10 Plus v2 1U rack
HPE SimpliVity 380 Gen10 G 2U rack
HPE SimpliVity 325 Gen10 1U rack
HPE SimpliVity 380 Gen10 2U rack
Adapters for the server
P31324-B21 HPE Ethernet 100Gb 2-port QSFP56 MCX623106AS-CDAT Adapter
BCM957504A5041CC Broadcom NetXtreme-E BCM57504 Quad-Port 100GbE QSFP56 PCIe 4.0 Ethernet Network Adapter
540-BDBX Dell NVIDIA Mellanox ConnectX-6 Dx Dual Port 100GbE QSFP56 PCIe Adapter
540-BDCF Dell Intel E810-CQDA2 Dual Port 100GbE QSFP28 PCIe Gen4 Adapter
Optics
QSFP-100G-SR4 Arista 100GBASE-SR4 QSFP28 Optical Transceiver
QSFP-100G-SR4-S Cisco 100GBASE-SR4 QSFP28 Optical Transceiver
407-BBOY Dell 100GbE QSFP28 SR4 Optical Transceiver (850nm, 100m MPO-12)
GPU cluster fabric
InfiniBand adapters and switches must match the generation: HDR is 200Gb, NDR is 400Gb. VPI adapters such as ConnectX-6 and ConnectX-7 can run either InfiniBand or Ethernet.
Servers
HPE ProLiant DL385 Gen11 2U rack
HPE ProLiant DL380a Gen11 2U rack
HPE ProLiant ML350 Gen11 4U tower
HPE Apollo 6500 Gen10 Plus 4U rack
HPE ProLiant XL675d Gen10 Plus 6U chassis (HPE Apollo d6500 Gen10 Plus), one XL675d per chassis
HPE Apollo 6500 Gen10 4U rack
GPUs
AMD Instinct MI210 PCIe 4.0 dual-slot full-height full-length
NVIDIA Data Center GPU H100 SXM5 80GB SXM5 module
NVIDIA Data Center GPU A800 PCIe 80GB PCIe dual-slot full-height full-length
AMD Instinct MI300X OAM (OCP Accelerator Module)
Adapters for the server
540-BCVE Dell NVIDIA Mellanox ConnectX-6 VPI Single Port 200Gb/s HDR InfiniBand / 200GbE PCIe Adapter
540-BDDW Dell NVIDIA Mellanox ConnectX-6 VPI Dual Port 200Gb/s HDR InfiniBand / 200GbE PCIe Adapter
540-BDRV Dell NVIDIA Mellanox ConnectX-7 Dual Port 400Gb/s NDR InfiniBand / 400GbE PCIe Gen5 Adapter
MCX556A-ECAT NVIDIA ConnectX-5 VPI Dual-Port 100Gb/s EDR InfiniBand and 100GbE QSFP28 PCIe 3.0 x16 Adapter
Plan and size it
- Draw this setup in the topology planner mrplanb.com
- Add up rack power and space rack-density.com
- iSCSI explained mrplanb.com
- Virtualization storage Ledger: scored storage platforms mrplanb.com
- Network monitoring tools compared mrplanb.com
- HPE SPOCK (HPE storage compatibility) hpe.com
Check compatibility with HPE
Before you buy, confirm the exact configuration against the vendor's own lists: firmware levels, operating systems, adapters and optics that HPE has tested with the HPE Aruba CX Aruba CX 9300.
- Compatibility HPE SPOCK (storage, SAN and host compatibility)
- Part lookup HPE PartSurfer (spare and option part numbers)
- Support HPE Support Center
Equivalent models from other brands
FAQ
Can 400G QSFP-DD ports break out to 100G connections?
Yes, each 400G port can be broken out into 4x 100GbE QSFP28 connections using breakout DACs or optical transceivers.
Is the CX 9300 suitable for AI cluster networking?
Yes, its 25.6 Tbps non-blocking bandwidth and hardware RoCEv2 capabilities provide the high throughput required for GPU model training fabrics.
Buying or selling Aruba CX 9300?
New, refurbished or used. Tell us the quantity and condition and we connect you with a vetted reseller in your region, usually within one working day.
Sources
- HPE Aruba CX 9300 QuickSpecs (Aruba CX 9300 Switch Series QuickSpecs), checked 2026-10-27
- HPE Aruba CX 9300 Overview and Technical Specifications, checked 2026-10-27