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Small rectangular SFP transceiver with metal housing and RJ45 port

STARTECH

STARTECH JD089BST SFP transceiver 1000BASE-T RJ45 100m

SKU CH-BK3X-HKKBT MPN JD089BST

Adds a 10/100/1000Base-T RJ45 port to compatible HPE switches with up to 100 m reach

  • Form factorHot-pluggable Hot-swappable
  • Port countTotal Number of Ports: 1 Connector Type: RJ-45 Interfaces/Po
  • Brand compatibilityHPE Switches: 5820AF 12500 5500 E4800 E4500
  • Product typeTransceiver
  • Supported standardsIEEE 802.3 10BASE-T IEEE 802.3ab 1000BASE-T IEEE 802.3u 100B
  • Network cablingMedia Type Supported: Twisted Pair Ethernet Technology: 1.25
  • 1 Gbps transfer rate over 100 m twisted pair cable
  • Hot-pluggable SFP form factor for easy installation
  • Compatible with HPE 5820AF 12500 5500 E4800 E4500 switches
  • Operates from 0 °C to 70 °C for standard environments
  • Meets IEEE 802.3 802.3ab 802.3u standards for reliable Ethernet connectivity

HPE-compatible SFP RJ45 module

This StarTech.com JD089BST transceiver provides a single RJ-45 port for 10/100/1000Base-T connections over twisted pair cable. It is designed for network administrators upgrading or repairing compatible HPE switches such as the 5820AF, 12500, 5500, E4800 and E4500 models. The hot-pluggable SFP form factor allows installation without powering down the switch. It delivers a 1 Gbps link up to 100 metres on Cat5e or Cat6 cabling.

Operating range 0 to 70 °C

The module operates reliably between 0 °C and 70 °C with humidity tolerance from 5 % to 95 % relative humidity. As a passive copper transceiver it draws minimal power and produces no audible noise, making it suitable for quiet rack environments. Storage temperature spans -40 °C to 85 °C for spares kept in unconditioned spaces. IEEE 802.3, 802.3u and 802.3ab compliance ensures standard Ethernet interoperability.

Hot-swappable SFP slot required

A free SFP mini-GBIC slot on a supported HPE switch is the only hardware requirement; no additional adapters or configuration tools are needed. The compact dimensions of 0.5 in by 0.5 in by 2.7 in and a weight of 0.06 lb leave adjacent slots unobstructed. Twisted-pair copper cabling eliminates the cost and complexity of fibre patch cords for short-range links. Lifetime warranty and free technical support back the deployment.

How it compares

Measured against everything we stock in SFP & SFP+ Transceiver Modules, at today’s prices. Recalculated every night.

Price $45.99
Cheaper than about 76% of the 1,471 comparable items (median $138.99).

Specifications

Product
Brand nameStarTech.com
Model nameJD089BST
Product typeTransceiver
Performance
Transfer speed1 Gbit/s
Connectivity
Supported standardsIEEE 802.3 10BASE-T
IEEE 802.3ab 1000BASE-T
IEEE 802.3u 100BASE-TX
Network cablingMedia Type Supported:
Twisted Pair
Ethernet Technology:
1.25 Gigabit Ethernet
Network Technology:
10/100/1000Base-T
Supported protocolsTCP/IP
Maximum range100 m (328 ft)
Ports & slots
Port countTotal Number of Ports:
1
Connector Type:
RJ-45
Interfaces/Ports Details:
1 x RJ-45 10/100/1000Base-T Network LAN
Size & build
Form factorHot-pluggable
Hot-swappable
Product dimensionsHeight:
0.5 in
Width:
0.5 in
Depth:
2.7 in
Product weight(Approximate):
0.06 lb
Shipping weight0.05 kg
Package size120 × 90 × 30 mm
Compatibility
Brand compatibilityHPE Switches:
5820AF
12500
5500
E4800
E4500
In the box
In the box1 - SFP transceiver
Environment & compliance
Temperature rangeOperating Temperature: 0 degree C to 70 degree C (32 degree F to 158 degree F)
Storage Temperature: -40 degree C to 85 degree C (-40 degree F to 185 degree F)
Humidity range5 to 95% RH

Questions about this item

How is the SFP transceiver installed in an HPE 5820AF switch, and what step is often missed?

Slide the module into an SFP port until it clicks, then secure the bale latch; the step often missed is confirming the latch is fully engaged so the transceiver seats properly.

What maintenance or replacement will the RJ45 SFP module need over time?

No scheduled maintenance is required; if the module fails or link errors increase, replace the unit — the hot-swappable design allows removal without powering down the switch.

What limit appears first when the transceiver runs continuously at 1 Gbps over 100 m of Cat6 cable?

The 70 °C operating-temperature ceiling is the first hard limit; sustained loads in warm racks can push the module toward that threshold.

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