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Teardown Of SEEKER SKS7300-8GPY4XGS Switch

Time: 2024-01-17
        Moduletek Laboratory recently purchased a SEEKER (Xike) SKS7300-8GPY4XGS managed switch. This report provides a brief teardown and analysis to show its internal structure.
Table 1 Official Specifications
    Model     SKS7300-8GPY4XGS Managed Ethernet Switch
    Ports     8 x 2.5G RJ45; 4 x 10GbE optical ports; 1 x CONSOLE management port
    Indicator
    LINK/ACT (1–8): Green = 2.5Gbps link rate; Orange = 100/1000Mbps link rate
    LINK/ACT SFP (9–12): Solid green = fiber port linked
    POWER : Power indicator
    Performance      Store & Forward
    Store-and-forward; 16K-entry MAC address table
    Operating Environment     Operating temperature ：0℃~40℃                                                 Storage temperature：-10℃~70℃
    Operating Humidity：10%~90% RH(non-condensing)                Storage Humidity：5%~90%RH non-condensing
    Input Power     100-240V AC
    Max Power Consumption     30W
    Noise Level     40dB(single fan)
        The front panel includes 8× 2.5G RJ45 ports, 4× 10G SFP ports, one RJ45 serial port, and status indicators. The rear panel is equipped with a power port, and air vents are located on both sides of the chassis.
SKS7300-8GPY4XGS switch front and rear panels
Figure 1 Front and Rear Panels
        A DB9-to-RJ45 serial cable was used to connect the switch to a host PC, with a baud rate of 9600 bps. Default credentials: username admin, no password. When a Moduletek 10G LR module is installed, port status can be checked normally, but the switch does not recognize module types.
        After removing the top cover, the internal layout is divided into two main sections: a main PCB integrating chips, resistors, heat dissipation components and other parts, and a separate power board. Four transformers (GROUP-TEK HST-48503SCR) are mounted in parallel near the front panel.
Internal Structure of Xike SKS7300-8GPY4XGS
Figure 2 Internal Structure
        With the fan and heat sink removed, the main switch chip (Realtek RTL9302C) and memory chip (Samsung K4B4G1646E-BCMA) are visible. Beneath the heat sink next to the transformers are two 4-port 2.5G PHY chips manufactured by MaxLinear.
Main Switch Chip of SKS7300-8GPY4XGS
Figure 3 Main Switch Chip
        Moduletek’s 2.5G and 10G optical modules are fully compatible with Xike switching devices. Welcome to inquire and place orders.
        For further inquiries about the above content, please contact us at: sales@moduletek.com
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