{{ totalProductsCount }}

In cart {{totalProductsCount}} item(s)

Total:
{{sum | formatAmount}}

Your cart is empty

header-product SFP Transceiver Module StarTech J4858CST - 1000BASE-SX 1GbE Multimode LC 850nm 550m DDM
62.49 €

SFP Transceiver Module StarTech J4858CST - 1000BASE-SX 1GbE Multimode LC 850nm 550m DDM

StarTech J4858CST SFP 1000BASE-SX 1GbE LC 850nm Photo 1
StarTech J4858CST SFP 1000BASE-SX 1GbE LC 850nm Photo 2
StarTech J4858CST SFP 1000BASE-SX 1GbE LC 850nm Photo 3
StarTech J4858CST SFP 1000BASE-SX 1GbE LC 850nm Photo 4
StarTech J4858CST SFP 1000BASE-SX 1GbE LC 850nm Photo 1
StarTech J4858CST SFP 1000BASE-SX 1GbE LC 850nm Photo 2
StarTech J4858CST SFP 1000BASE-SX 1GbE LC 850nm Photo 3
StarTech J4858CST SFP 1000BASE-SX 1GbE LC 850nm Photo 4
Keep track of price changes You keep track of price changes
Watch the price drop

Leave your address - as soon as the price of the product goes down, you'll know about it right away

You keep track of price changes

SFP Transceiver Module StarTech J4858CST - 1000BASE-SX 1GbE Multimode LC 850nm 550m DDM

{{email}}
You keep track of price changes

SFP Transceiver Module StarTech J4858CST - 1000BASE-SX 1GbE Multimode LC 850nm 550m DDM

{{email}}
{{selectedOffer && selectedOffer.price | formatAmount}}

Short description

Compatible SFP fiber optic transceiver module for 1 Gigabit Ethernet, model J4858CST by StarTech. Supports 1000BASE-SX over multimode fiber at 850 nm with LC connector and reach up to 550 m. SFP interface, max data rate 1250 Mbit/s, DDM support, aluminium silver housing, typical power 1 W and MTBF about 3,381,761 h. Compact hot-pluggable 1GbE module for switches and routers.
Available at price 62.49 €: 22 pcs.
Total available for order: 44 pcs.
Warranty: 2 Years
SKU: 431300
Manufacturer: StarTech
free shipment

Cheapest delivery:

Unisend LV

Pick-up points

Unisend LV

Cost

1.99 €

Deliver

{{selectedOffer.parcelStationDeliveryString}}

Customer service center
2b. Kengaraga str., Riga, Latvia, LV-1063
01.10.2026 {{selectedOffer.officeDeliveryString}}
free
Courier Delivery Please note that in case of a large parcel additional delivery costs may apply!
06.10.2026 {{selectedOffer.courierDeliveryString}}
From 4.99 € (Weight: 0.08 kg)
Parcel couriers
Unisend LV / Venipak Pickup LV / Venipak Locker LV / DPD Paku skapis / Omniva LV / Latvijas Pasts pakomāts / Latvijas Pasts nodaļa
06.10.2026 {{selectedOffer.parcelStationDeliveryString}}
From 1.99 €
payment
Payment Methods:
Bank transfer, Bank cards on-line, Apple Pay, Google Pay
Together cheaper
{{product.price | formatAmount}}
{{product.title}}
{{productBundle.reference.specialPrice | formatAmount}}
{{productBundle.title}}
{{productBundlePreviousPrice | formatAmount}}
{{productBundleSpecialPrice | formatAmount}}

You saving {{productBundleYouSave | formatAmount}}

Product information

Description

The StarTech J4858CST SFP transceiver module provides 1 Gigabit Ethernet connectivity over multimode fiber using the 1000BASE-SX standard. Designed for compatible switches and routers, this compact SFP module supports an 850 nm wavelength, LC connector and a maximum reach of up to 550 m. It is hot-pluggable to enable easy installation or replacement without disrupting network operations and includes Digital Diagnostics Monitoring (DDM) for real-time link and device status.

Advantages

This module delivers reliable 1GbE fiber links with low power consumption and a small SFP form factor that fits standard network equipment. Built in an aluminium silver housing and offering DDM support, it facilitates straightforward monitoring of optical parameters. The transceiver is compatible with common vendor equipment and is backed by StarTech's lifetime warranty and multilingual technical support for long-term use.

Suitable for

  • Connecting switches and routers over multimode fiber in campus or enterprise networks
  • Upgrading copper links to fiber for improved electromagnetic immunity
  • Short- to medium-range backbone or distribution links up to 550 m
  • Hot-swappable replacements and spare inventory for 1GbE fiber ports

Key specifications

  • Interface type: SFP
  • Standard: 1000BASE-SX (1 GbE)
  • Wavelength: 850 nm
  • Fiber type: Multimode
  • Connector: LC
  • Maximum reach: 550 m (1804 ft)
  • Maximum data transfer rate: 1250 Mbit/s
  • Power consumption: typically less than 1.3 W
  • Digital Diagnostics Monitoring (DDM): supported
  • Housing: aluminium, silver
  • Weight: 0.018 kg
  • MTBF: approximately 3,381,761 hours

How to use

Ensure the host device supports SFP 1000BASE-SX modules and that multimode fiber with LC connectors is installed. Power down the port only if required by your equipment; otherwise, insert the hot-pluggable transceiver into the SFP slot until it seats securely. Connect the LC fiber patch cable, observe link/activity indicators on the switch or router, and verify link parameters via the device management interface or the module's DDM readings. To remove, disconnect the fiber cable and gently pull the module from the SFP socket following the host equipment instructions.

Usage recommendations

Use OM3/OM4 multimode fiber for optimal performance at longer distances within the specified reach, maintain clean LC connector endfaces to avoid signal loss, and consult host vendor compatibility lists when deploying in branded switches or routers.

Specifications

Interface type:
SFP
Maximum data transfer rate: The maximum speed with which data can be transmitted from one device to another.
1250 Mbit/s
SFP transceiver type:
Fiber optic
All features

Logistics data

Products per master (outer) case:
36 pc(s)
Master (outer) case height:
200 mm
Master (outer) case length:
305 mm
Harmonized System (HS) code:
85369010
Master (outer) case width:
254 mm

Packaging data

Number of products included: The number of products that are included in the package.
1 pc(s)
Package weight: Weight of the packaged product.
46 g
Package height: The distance from the top to the bottom of the packaging.
33 mm
Package depth: The distance from the front to the back of the packaging.
93 mm
Package width: The distance from one side of the packaging to the other.
119 mm

Weight & dimensions

Weight: Weight of the product without packaging (net weight). If possible, the net weight is given including standard accessories and supplies. Please note that sometimes the manufacturer leaves out the weight of accessories and/or supplies.
0.018 kg
Height: The measurement of the product from head to foot or from base to top.
13 mm
Depth: The distance from the front to the back of something.
57 mm
Width: The measurement or extent of something from side to side.
14 mm

Operational conditions

Operating relative humidity (H-H):
30 - 75
Storage temperature (T-T): The minimum and maximum temperatures at which the product can be safely stored.
-40 - 85
Operating temperature (T-T): The minimum and maximum temperatures at which the product can be safely operated.
0 - 70

Sustainability

Sustainability certificates:
RoHS

Certificates

Certification:
CE, FCC, UL

Power

Power consumption (typical): Amount of power consumed by this model, often expressed in watts (W). Typical values that manufacturers give are power consumption when off, standby/suspended mode, typical use, maximum usage.
1 W

Features

Mean time between failures (MTBF): Statistical model used to indicate product/mechanism reliability; expressed in hours and percentage of duty cycle. This number (in hours) does not indicate the mean time before failure for a single unit/mechanism.
3381761 h
Hot-swap:
Yes
Housing material: What the casing of the product is made of.
Aluminium
Product colour: The colour e.g. red, blue, green, black, white.
Silver

Performance

Wavelength-division multiplexing (WDM):
No
Digital Diagnostics Monitoring (DDM):
Yes
Duplex system: A duplex communication system is a point-to-point system composed of two connected parties or devices that can communicate with one another in both directions, simultaneously.
Full, Half
Networking standards: The way in which the network is working, e.g. IEEE 802.11a, IEEE 802.11b, IEEE 802.11g.
IEEE 802.3z
Wavelength: The distance over which a wave repeats itself. The wavelength determines the characteristics of the wave e.g. red light has a different wavelength to blue light.
850 nm
Maximum transfer distance: The greatest distance over which the data/signal can be transferred.
550 m
SFP transceiver standard:
SX
Fiber optic connector: This terminates the end of an optical fiber, and enables quicker connection and disconnection than splicing. The connectors mechanically couple and align the cores of fibers so light can pass. Better connectors lose very little light due to reflection or misalignment of the fibers. In all there have been about 100 types of optic fiber connectors produced.
LC
Multi-mode fiber (MMF) supported:
Yes
Interface type:
SFP
Maximum data transfer rate: The maximum speed with which data can be transmitted from one device to another.
1250 Mbit/s
SFP transceiver type:
Fiber optic

Description

Machine translation. Load original

Similar products

{{product.title}}
Show details Hide details

{{highlightedFeature.featureTitle}}:

{{getProductFeatureValueById(product, highlightedFeature.featureId)}}

{{product.price | formatAmount}}
Might be useful
{{product.manufacturerName}}
{{product.categoryName}}
{{product.title}}
{{product.specialPrice}}
{{product.price}}
Stock data
Warehouse Stock Delivery to the store Store Price
WH94 22 01.10.2026 Best delivery
62.49 € Best price
WH354 22 01.10.2026 Best delivery
85.99 €
62.49 €
Stock: 22
Delivery Date: 01.10.2026 Best delivery
Warehouse: WH94
85.99 €
Stock: 22
Delivery Date: 01.10.2026 Best delivery
Warehouse: WH354

Customer reviews

Customer questions

FAQ

How much does the StarTech J4858CST SFP 1000BASE-SX 1GbE LC 850nm cost, and is it available for purchase?

The price is 62.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 44 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 01.10.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay. All transactions are 100% secure and encrypted.

Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

What is the warranty period?

All StarTech products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized StarTech service centers and through AiO.lv

Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. We will assist with consultation, warranty claim processing, and coordination with certified service centers.

How can I tell if this product suits my needs?

When making a choice, we recommend paying attention to the key features: interface type, maximum data transfer rate, sfp transceiver type, compatibility with your devices or usage conditions, material quality, functionality, and warranty terms. These characteristics will help you determine how well the model meets your needs.

Where can I download the instructions for StarTech J4858CST SFP 1000BASE-SX 1GbE LC 850nm?

You can download the instructions in PDF format from the “Instructions” section on the product description page. The file contains complete information about installation, setup, and usage.
warranty
14-Day Return Policy We are confident in our quality, but if the purchase doesn’t fit — you have 14 days to return the product with peace of mind.
shipping
Fast Delivery Get your orders as quickly as possible — right to your door, parcel lockers, or pickup points across Latvia and the EU.
payment
Secure Payment Pay the way you prefer: cash, VISA, MasterCard, Apple Pay, Google Pay, bank transfer, or 0% installment plan.
warranty
Quality Since 2008 AiO.lv has been on the market for over 18 years and has earned trust — with more than 6000 genuine positive reviews on Google.