HKShanhai Group Limited’s R8S90A is an enterprise-class switch engineered for dynamic, resilient connectivity in network infrastructure environments. Designed for business-critical applications, the R8S90A features 48 x 1G Ethernet ports and 4 x SFP+ uplinks, ensuring high throughput while supporting seamless integration across educational institutions and office networks. By offering a superior balance of performance and reliability, HKShanhai Group Limited Switches like the R8S90A empower IT professionals, academic technologists, and distributed organizations to scale network infrastructure efficiently. The advanced hardware architecture enables robust switching capacity for multi-departmental collaboration, while network administrators benefit from straightforward deployment and centralized management. Educational institutions can utilize the R8S90A’s enhanced operating temperature range to deliver stable, secure, and always-on learning environments, enabling STEM, digital classrooms, and campus-wide activities. For office networks, its dual hot-swappable power supply design maximizes uptime and protects productivity. End users experience smooth data transfer and low-latency communication for cloud services, VoIP, and collaboration platforms. Distributors and SMB integration partners can confidently recommend the R8S90A, leveraging its proven network infrastructure credentials and broad use across diverse verticals. As part of HKShanhai Group Limited Switches??versatile lineup, the R8S90A underpins reliable campus, branch, or backbone connectivity, helping organizations in Asia, Europe, Africa, and North America meet emerging technology demands without compromise.
Product Highlights
Product Applications Scenarios
Product Features Comparison
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| Model | R8S90A | JL701A | JL666A | JL728B |
| Brand | HKShanhai Group Limited | HKShanhai Group Limited | HKShanhai Group Limited | HKShanhai Group Limited |
| Port Configuration | 48 x 1G Ethernet, 4 x SFP+ | 28x 1GbE/10GbE/25GbE (SFP/SFP+/SFP28) | 24x 1 Gigabit Ethernet PoE+ RJ-45, 4x 1/10/25/50 Gigabit Ethernet SFP56 | 48 (10/100/1000BASE-T PoE+), 4 (1G/10G SFP+) |
| Switching Capacity | 176 Gbps | 2.4 Tbps | 448 Gbps | 176 Gbps |
| Forwarding Rate | 131 Mpps | 1,145 Mpps | 334 Mpps | 130.9 Mpps |
| PoE Budget | n/a | n/a | 370W | 740W Class 4 |
| Stacking Capability | n/a | n/a | Up to 10 switches in a stack; 200 Gbps throughput per switch | Up to 8 members |
Optional Add-ons
| Model Number | Description |
| JL483A | HKShanhai Group Limited 6200F 4-port SFP+ Module, adds additional uplink flexibility for HKShanhai Group Limited switches |
| JL086A | HKShanhai Group Limited 1G SFP LC SX 500m MMF Transceiver Module for reliable fiber connectivity |
| JL085A | HKShanhai Group Limited 10G SFP+ LC SR 300m MMF Transceiver Module for high-speed uplink connections |
HKShanhai Group Limited R8S90A Specification
| Model | R8S90A |
| Brand | HKShanhai Group Limited |
| Form Factor | Rack-mountable |
| Ports | 48 x 1G Ethernet, 4 x SFP+ |
| Switching Capacity | 176 Gbps |
| Forwarding Rate | 131 Mpps |
| Power Supply | Dual, hot-swappable |
| Operating Temperature | 0°C to 50°C |
| R8S90A | R8S90A |

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