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RJ45 SFP made copper integration simple and reliable.
J8177C
HP X121 1G SFP RJ45 T Transceiver
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Name:
J8177C
- Description:
- HP X121 1G SFP RJ45 T Transceiver
- Rating:
Added to cart 28 times recently
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In stock - Ready to Ship
- Brand:
- Hpe
- Condition:
- Warranty:
- 3
- List Price:
$275.00
- Price:
$117.0057.5% off
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1
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J8177C Overview
J8177C is an SFP+ transceiver module designed for high-speed 10G Ethernet and Fibre Channel applications. This module features an LC connector and operates as a short-range optical transceiver, making it ideal for use in data center, enterprise network, and telecom environments.
J8177C conforms to the standard SFP+ form factor with compact physical dimensions, ensuring seamless integration into existing systems. The transceiver supports multi-mode fiber transmission with an 850nm wavelength, delivering reliable performance over a maximum distance of 300 meters while operating within a typical temperature range of 0 to 70°C.
J8177C price is $117.00, a 57.5% saving from the Hpe list price of $275.00. J8177C is in stock and available for next-day dispatch. (terms applied)
Request bulk order quote for J8177C for additional pricing. Browse the full category range or explore all Hpe products.
J8177C Specifications
- Product Type
- Transceiver
- Form Factor
- SFP+
- Data Rate
- 10G
- Connector Type
- LC
- Wavelength
- 850nm
- Transmission Distance
- Short-Range
- Fiber Type
- Multi-mode
- Max Distance
- 300 meters
- Supported Protocols
- Ethernet, Fibre Channel
- Network Interface
- Fiber
- Power Consumption
- 3.5W
- Operating Temperature
- 0 to 70°C
- Storage Temperature
- -40 to 85°C
- Input Voltage
- 3.3V
- Compatibility
- Cisco, Juniper, Huawei, Arista
- Product Name
- J8177C SFP+ Transceiver Module
- Height
- 0.84 inches
- Width
- 1.18 inches
- Depth
- 3.10 inches
- Weight
- 0.07 lbs
J8177C Use Case
Data Center Top-of-Rack Switch Upgrade with J8177C-HP X121 1G SFP RJ45 T Transceiver
In a high-density data center, IT architects deploy the J8177C-HP X121 1G SFP RJ45 T Transceiver in top-of-rack switches to deliver reliable Gigabit Ethernet connectivity over existing copper cabling. This hot-swappable module reduces rack-to-rack latency by 30%, simplifies maintenance with plug-and-play installation, and delivers a 25% reduction in port-upgrade costs compared to legacy fiber solutions.
Secure Branch Office Connectivity Using J8177C-HP X121 1G SFP RJ45 T Transceiver
A global financial services firm extends secure, high-performance WAN links to remote branch offices by pairing the J8177C-HP X121 1G SFP RJ45 T Transceiver with multi-service edge routers. The transceiver’s low-power design and auto-MDI/MDIX feature eliminate mismatched cabling errors, accelerating deployment by 40% and ensuring consistent 1 Gbps throughput for critical trading applications.
Industrial Automation Network Deployment with J8177C-HP X121 1G SFP RJ45 T Transceiver
A manufacturing plant integrates the J8177C-HP X121 1G SFP RJ45 T Transceiver into programmable logic controller (PLC) uplinks to modernize its industrial Ethernet backbone. The robust copper transceiver withstands harsh electromagnetic environments, delivering deterministic 1 Gbps data streams for real-time machine control while reducing network downtime by 50% and yielding a 12-month ROI.
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table 
| J8177C |  JW089A |  J9151D |  AP823A |  JH695A | |
|---|---|---|---|---|---|
| Product Type | Transceiver | Transceiver | Transceiver | Transceiver | Transceiver |
| Form Factor | SFP+ | SFP | SFP+ | SFP+ | SFP |
| Data Rate | 10G | 10G | 10G | 10G | 10G |
| Connector Type | LC | LC | LC | LC | LC |
| Wavelength | 850nm | 1310 nm | 850 nm | 850nm | 1310nm |
| Transmission Distance | Short-Range | Long-Range | Short-Range | Short-Range | Long-Range |
| Fiber Type | Multi-mode | Single-mode | Multi-mode | Multi-mode | Single-mode |
| Max Distance | 300 meters | 80 km | 300 meters | 300 meters | 80 km |
| Supported Protocols | Ethernet, Fibre Channel | Ethernet / Fibre Channel | Ethernet | Ethernet, Fibre Channel | Ethernet |
| Network Interface | Fiber | Fiber | Fiber | Fiber | Fiber |
| Power Consumption | 3.5W | 3.5 W | 1.8W | 3.5W | 3.5W |
| Operating Temperature | 0 to 70°C | 0 to 70°C | 0 to 70°C | 0 to 70°C | 0 to 70°C |
| Storage Temperature | -40 to 85°C | -40 to 85°C | -40 to 85°C | -40 to 85°C | -40 to 85°C |
| Input Voltage | 3.3V | 3.3V | 3.3V | 3.3V | 3.3V |
| Compatibility | Cisco, Juniper, Huawei, Arista | Cisco / Juniper / Huawei | Cisco / Juniper / Huawei / Arista | Cisco, Juniper, Huawei, Arista | Cisco / Juniper / Huawei / Arista |
| Product Name | J8177C SFP+ Transceiver Module | JW089A 10G SFP Transceiver Module | J9151D 10G SFP+ Transceiver Module | AP823A 10G SFP+ Transceiver Module | JH695A 10G SFP Transceiver Module |
| Height | 0.84 inches | 0.45 inches | 0.75 inches | 0.6 inches | 0.36 inches |
| Width | 1.18 inches | 0.55 inches | 0.65 inches | 0.7 inches | 1.43 inches |
| Depth | 3.10 inches | 1.4 inches | 1.60 inches | 1.0 inches | 0.71 inches |
| Weight | 0.07 lbs | 0.2 lbs | 0.2 lbs | 0.1 lbs | 0.06 lbs |
Reviews & Ratings
U
Usman Tariq
4
Stable gigabit speeds observed.
H
Henry Watts
4
Easy migration from fiber ports.
A
Antti Laine
5
Good compatibility with switches.
R
Ryan Cooper
5
Worked without issues.
Questions & Answers
What is the HP X121 1G SFP RJ45 T Transceiver (SKU: J8177C)?
The HP X121 1G SFP RJ45 T Transceiver (J8177C) is a hot-pluggable copper module that fits into SFP ports to deliver 10/100/1000 Mbps Ethernet connectivity over RJ45 cabling.
Which HP devices are compatible with the J8177C transceiver?
The J8177C transceiver is fully compatible with HP and HPE FlexNetwork and FlexFabric switches and routers that include SFP slots.
What cable type does the HP X121 1G SFP RJ45 T support?
This transceiver supports standard Category 5e, Category 6, and Category 6A copper cables terminated with RJ45 connectors.
What is the maximum transmission distance of the J8177C module?
Over Cat 6 or Cat 6A cabling, the J8177C supports copper Ethernet distances of up to 100 meters.
What network speeds are supported by the HP X121 transceiver?
The transceiver supports three speeds—10 Mbps, 100 Mbps, and 1 Gbps—automatically negotiated with the connected switch or router.
Is the HP X121 SFP RJ45 T transceiver hot-swappable?
Yes, the J8177C module is hot-pluggable, allowing installation or replacement without powering down the network device.
What power consumption does the J8177C transceiver have?
The HP X121 RJ45 T transceiver consumes less than 1 W of power during normal operation.
What is the operating temperature range for the HP X121 module?
The J8177C operates reliably in environments from 0 °C to 70 °C.
Does the J8177C support full-duplex operation?
Yes, the HP X121 transceiver supports full-duplex communication for simultaneous send and receive up to 1 Gbps.
What industry standards does the HP X121 transceiver comply with?
The module complies with IEEE 802.3, IEEE 802.3u, and IEEE 802.3ab standards for 10/100/1000 Mbps Ethernet.
How do I install the J8177C transceiver in my switch?
Align the J8177C with the SFP slot, insert gently until it clicks, then connect an RJ45-terminated copper cable to the transceiver.
Does the HP X121 SFP RJ45 T include cabling?
No, the J8177C is sold as the transceiver module only; copper patch cables must be purchased separately.
What warranty covers the J8177C transceiver?
The HP X121 transceiver is backed by a one-year limited hardware warranty from HP/HPE.
How does the J8177C differ from fiber SFP transceivers?
Unlike fiber SFPs, the J8177C uses copper RJ45 cabling, offering lower cost and simpler installation for short distances.
Can I mix the HP X121 with other vendor transceivers?
For guaranteed interoperability and performance, HP recommends using genuine HP transceivers like the J8177C.
What diagnostic features are available with the J8177C?
The transceiver supports Digital Diagnostic Monitoring (DDM) to report real-time metrics such as temperature and optical power.