**Lot of 3 Genuine HP ProCurve J4858C Gigabit-SX-LC SFP Transceiver Modules**
Up for sale is a matching lot of three (3) authentic, original OEM HP ProCurve Gigabit SFP (mini-GBIC) optical transceivers. These are genuine Hewlett-Packard components pulled directly from working enterprise environments, making them ideal for corporate networks, compliance configurations, or homelab expansions.
**Product Specifications:**
* **Brand:** HP (Hewlett-Packard)
* **Part Number:** J4858C (HP Option: 1990-3662 / 1990-3657)
* **Data Rate:** 1000 Mbps (1 Gbps Gigabit Ethernet)
* **Connection Type:** LC Duplex
* **Cabling Standard:** 1000BASE-SX (Short-Range Multimode)
* **Wavelength:** 850nm
* **Max Distance:** Up to 550 meters over Multimode Fiber (MMF)
**Condition Notes:**
* Genuine system pulls clean from a functional, air-conditioned corporate environment.
* Excellent physical condition with completely intact metallic grounding clips.
* Protective plastic dust caps are included on all three modules to shield the optical lenses from dust during transit.
**Shipping & Handling:**
Free shipping within the domestic United States via lightweight padded mailer. Modules are wrapped securely in individual anti-static buffering and thick bubble protection to guarantee a safe, clean arrival.
Parts are vintage enterprise pulls and carry no manufacturer warranty. Please confirm exact hardware compatibility with your switches or routers prior to purchase. Please review the gallery photos to inspect the exact physical items you will receive.
