H3C S9855-48CD8D 400G Uplink High-Density ToR Data Center Switch
H3C S9855-48CD8D Data Center Switch
Overview
The H3C S9855-48CD8D is a high-density 100 GE data-center ToR/leaf switch built for cloud computing, storage networks, and large enterprise data centers. It features 48 × 100 GE QSFP28 access/downlink ports and 8 × 400 GE uplink ports, delivering unmatched density in a 1U form factor. The switch supports VXLAN, EVPN, SR-DC, and full RDMA/RoCEv2 lossless Ethernet, making it ideal for modern data-center fabrics.
Note: Power and fan modules must be purchased separately.
Highlights
1. High-Density 100G Access
48 × 100GE DSFP access ports plus 8 × 400GE QSFP-DD uplink ports enable extremely dense server access in large-scale cloud or HPC deployments.
2. Lossless Data-Center Fabric
Supports PFC, ECN, DCBX, and RoCEv2 for zero-packet-loss storage and HPC workloads, ensuring deterministic and ultra-low-latency forwarding.
3. Advanced Virtualization & Multi-Tenant Fabric
Built-in VXLAN, EVPN, SR-DC, and automation features enable scalable cloud fabric and multi-tenant networks.
4. Intelligent O&M & Programmability
Provides Telemetry, sFlow, and programmable automation with Python/OPS to simplify data-center operations and monitoring.
Recommended Accessories
| Accessory | Category | Description |
|---|---|---|
| Power Supply Modules | Power | Redundant AC/DC hot-swappable modules; ordered separately. |
| Fan Modules | Cooling | Hot-swappable airflow modules (front-to-back or reverse). |
| QSFP28 Optical Modules | Optics | 100G SR4/LR4; AOC/DAC cables for server or spine connectivity. |
Comparison with Similar Models
| Feature | S9855-48CD8D | S9850-32H | Cisco Nexus 9364C |
|---|---|---|---|
| Port Configuration | 48 × 100GE + 8 × 400GE | 32 × 100GE | 64 × 100GE |
| Breakout Support | 4×25G / 4×10G | 4×25G / 4×10G | Yes |
| Virtualization | VXLAN, EVPN, SR-DC | VXLAN, EVPN | VXLAN, EVPN |
| RDMA/Lossless | Full RoCEv2 stack | Full RoCEv2 stack | Supported |
| Ideal Use Case | Ultra-dense ToR access | Leaf/aggregation | Leaf/ToR |
| Power | Modular | Modular | Modular |
Specifications
| Parameter | Specification |
|---|---|
| Model | H3C S9855-48CD8D |
| Downlink Ports | 48 × 100GE DSFP |
| Uplink Ports | 8 × 400GE QSFP-DD |
| Breakout Options | 100G → 4×25G or 8×50G |
| Switching Capacity | Full line-rate 100GE across all ports |
| Forwarding Performance | Ultra-low latency, lossless forwarding |
| Virtualization Features | VXLAN, EVPN, SR-DC, DCBX, PFC, ECN |
| RDMA Support | RoCEv2 |
| O&M Features | Telemetry, sFlow, OPS/Python automation |
| Power Modules | Dual hot-swappable AC/DC (ordered separately) |
| Fan Modules | Hot-swappable airflow modules |
| Dimensions | 1U standard depth design |
| Operating Environment | Data-center deployment conditions |
More Details
Quality Certifications
Warranty
100% Low Price Guarantee
Network-switch.com provides high-quality products at low wholesale prices
100% Quality Assurance
All items are ORIGINAL and GENUINE only.
Item conditions are "New Sealed". They are fully tested by H3CIE Certified Engineers.
Free Technical Support
Our FREE Expert Consultancy Support is over the phone, by chat, by email or by login remotely.
100% Money Back Guarantee
You can contact our customer service team to exchange or return any product that you bought from us.
Flexible Secure Payment & Shipment
Verified authorization: Mcafee Secure, VeriSign Secured
Return Material Authorization (RMA) Process
Standard Warranty Policy
Original New Sealed Enterprise Hardware: 3 Years
Original New Sealed Consumer Devices: 1 Year
The Support Contacts
If your H3C products failed, you must contact your sales representative to verify product failure. If the problem still can't correct by remote support methods i.e. email or phone support, the RMA procedure will issue.
Product Information
Product Information
Shipping & Returns
Shipping & Returns

H3C S9855-48CD8D 400G Uplink High-Density ToR Data Center Switch
H3C S9855-48CD8D 400G Uplink High-Density ToR Data Center Switch
H3C S9855-48CD8D Data Center Switch
Overview
The H3C S9855-48CD8D is a high-density 100 GE data-center ToR/leaf switch built for cloud computing, storage networks, and large enterprise data centers. It features 48 × 100 GE QSFP28 access/downlink ports and 8 × 400 GE uplink ports, delivering unmatched density in a 1U form factor. The switch supports VXLAN, EVPN, SR-DC, and full RDMA/RoCEv2 lossless Ethernet, making it ideal for modern data-center fabrics.
Note: Power and fan modules must be purchased separately.
Highlights
1. High-Density 100G Access
48 × 100GE DSFP access ports plus 8 × 400GE QSFP-DD uplink ports enable extremely dense server access in large-scale cloud or HPC deployments.
2. Lossless Data-Center Fabric
Supports PFC, ECN, DCBX, and RoCEv2 for zero-packet-loss storage and HPC workloads, ensuring deterministic and ultra-low-latency forwarding.
3. Advanced Virtualization & Multi-Tenant Fabric
Built-in VXLAN, EVPN, SR-DC, and automation features enable scalable cloud fabric and multi-tenant networks.
4. Intelligent O&M & Programmability
Provides Telemetry, sFlow, and programmable automation with Python/OPS to simplify data-center operations and monitoring.
Recommended Accessories
| Accessory | Category | Description |
|---|---|---|
| Power Supply Modules | Power | Redundant AC/DC hot-swappable modules; ordered separately. |
| Fan Modules | Cooling | Hot-swappable airflow modules (front-to-back or reverse). |
| QSFP28 Optical Modules | Optics | 100G SR4/LR4; AOC/DAC cables for server or spine connectivity. |
Comparison with Similar Models
| Feature | S9855-48CD8D | S9850-32H | Cisco Nexus 9364C |
|---|---|---|---|
| Port Configuration | 48 × 100GE + 8 × 400GE | 32 × 100GE | 64 × 100GE |
| Breakout Support | 4×25G / 4×10G | 4×25G / 4×10G | Yes |
| Virtualization | VXLAN, EVPN, SR-DC | VXLAN, EVPN | VXLAN, EVPN |
| RDMA/Lossless | Full RoCEv2 stack | Full RoCEv2 stack | Supported |
| Ideal Use Case | Ultra-dense ToR access | Leaf/aggregation | Leaf/ToR |
| Power | Modular | Modular | Modular |
Specifications
| Parameter | Specification |
|---|---|
| Model | H3C S9855-48CD8D |
| Downlink Ports | 48 × 100GE DSFP |
| Uplink Ports | 8 × 400GE QSFP-DD |
| Breakout Options | 100G → 4×25G or 8×50G |
| Switching Capacity | Full line-rate 100GE across all ports |
| Forwarding Performance | Ultra-low latency, lossless forwarding |
| Virtualization Features | VXLAN, EVPN, SR-DC, DCBX, PFC, ECN |
| RDMA Support | RoCEv2 |
| O&M Features | Telemetry, sFlow, OPS/Python automation |
| Power Modules | Dual hot-swappable AC/DC (ordered separately) |
| Fan Modules | Hot-swappable airflow modules |
| Dimensions | 1U standard depth design |
| Operating Environment | Data-center deployment conditions |
More Details
Quality Certifications
Warranty
100% Low Price Guarantee
Network-switch.com provides high-quality products at low wholesale prices
100% Quality Assurance
All items are ORIGINAL and GENUINE only.
Item conditions are "New Sealed". They are fully tested by H3CIE Certified Engineers.
Free Technical Support
Our FREE Expert Consultancy Support is over the phone, by chat, by email or by login remotely.
100% Money Back Guarantee
You can contact our customer service team to exchange or return any product that you bought from us.
Flexible Secure Payment & Shipment
Verified authorization: Mcafee Secure, VeriSign Secured
Return Material Authorization (RMA) Process
Standard Warranty Policy
Original New Sealed Enterprise Hardware: 3 Years
Original New Sealed Consumer Devices: 1 Year
The Support Contacts
If your H3C products failed, you must contact your sales representative to verify product failure. If the problem still can't correct by remote support methods i.e. email or phone support, the RMA procedure will issue.
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
H3C S9855-48CD8D Data Center Switch
Overview
The H3C S9855-48CD8D is a high-density 100 GE data-center ToR/leaf switch built for cloud computing, storage networks, and large enterprise data centers. It features 48 × 100 GE QSFP28 access/downlink ports and 8 × 400 GE uplink ports, delivering unmatched density in a 1U form factor. The switch supports VXLAN, EVPN, SR-DC, and full RDMA/RoCEv2 lossless Ethernet, making it ideal for modern data-center fabrics.
Note: Power and fan modules must be purchased separately.
Highlights
1. High-Density 100G Access
48 × 100GE DSFP access ports plus 8 × 400GE QSFP-DD uplink ports enable extremely dense server access in large-scale cloud or HPC deployments.
2. Lossless Data-Center Fabric
Supports PFC, ECN, DCBX, and RoCEv2 for zero-packet-loss storage and HPC workloads, ensuring deterministic and ultra-low-latency forwarding.
3. Advanced Virtualization & Multi-Tenant Fabric
Built-in VXLAN, EVPN, SR-DC, and automation features enable scalable cloud fabric and multi-tenant networks.
4. Intelligent O&M & Programmability
Provides Telemetry, sFlow, and programmable automation with Python/OPS to simplify data-center operations and monitoring.
Recommended Accessories
| Accessory | Category | Description |
|---|---|---|
| Power Supply Modules | Power | Redundant AC/DC hot-swappable modules; ordered separately. |
| Fan Modules | Cooling | Hot-swappable airflow modules (front-to-back or reverse). |
| QSFP28 Optical Modules | Optics | 100G SR4/LR4; AOC/DAC cables for server or spine connectivity. |
Comparison with Similar Models
| Feature | S9855-48CD8D | S9850-32H | Cisco Nexus 9364C |
|---|---|---|---|
| Port Configuration | 48 × 100GE + 8 × 400GE | 32 × 100GE | 64 × 100GE |
| Breakout Support | 4×25G / 4×10G | 4×25G / 4×10G | Yes |
| Virtualization | VXLAN, EVPN, SR-DC | VXLAN, EVPN | VXLAN, EVPN |
| RDMA/Lossless | Full RoCEv2 stack | Full RoCEv2 stack | Supported |
| Ideal Use Case | Ultra-dense ToR access | Leaf/aggregation | Leaf/ToR |
| Power | Modular | Modular | Modular |
Specifications
| Parameter | Specification |
|---|---|
| Model | H3C S9855-48CD8D |
| Downlink Ports | 48 × 100GE DSFP |
| Uplink Ports | 8 × 400GE QSFP-DD |
| Breakout Options | 100G → 4×25G or 8×50G |
| Switching Capacity | Full line-rate 100GE across all ports |
| Forwarding Performance | Ultra-low latency, lossless forwarding |
| Virtualization Features | VXLAN, EVPN, SR-DC, DCBX, PFC, ECN |
| RDMA Support | RoCEv2 |
| O&M Features | Telemetry, sFlow, OPS/Python automation |
| Power Modules | Dual hot-swappable AC/DC (ordered separately) |
| Fan Modules | Hot-swappable airflow modules |
| Dimensions | 1U standard depth design |
| Operating Environment | Data-center deployment conditions |
More Details
Quality Certifications
Warranty
100% Low Price Guarantee
Network-switch.com provides high-quality products at low wholesale prices
100% Quality Assurance
All items are ORIGINAL and GENUINE only.
Item conditions are "New Sealed". They are fully tested by H3CIE Certified Engineers.
Free Technical Support
Our FREE Expert Consultancy Support is over the phone, by chat, by email or by login remotely.
100% Money Back Guarantee
You can contact our customer service team to exchange or return any product that you bought from us.
Flexible Secure Payment & Shipment
Verified authorization: Mcafee Secure, VeriSign Secured
Return Material Authorization (RMA) Process
Standard Warranty Policy
Original New Sealed Enterprise Hardware: 3 Years
Original New Sealed Consumer Devices: 1 Year
The Support Contacts
If your H3C products failed, you must contact your sales representative to verify product failure. If the problem still can't correct by remote support methods i.e. email or phone support, the RMA procedure will issue.











