United States
Trusted by the Highest-Stakes Buyers
Federal agencies and Fortune 500 operations source through ORM Systems.
US Government & Defense
Enterprise Clients
378929-B21-C
Original Stock
Ready to Ship
1000BASE-SX SFP HP BladeSystem Compatible
FEATURED DEAL
Featured Deal
Hand-picked by our procurement team for standout value. This unit is offered at our sharpest price on current stock, verified against live market rates.
Name:
378929-B21-C
- Description:
- 1000BASE-SX SFP HP BladeSystem Compatible
- Rating:
Added to cart 28 times recently
- Availability:
2 In stock - Ready to Ship
- Brand:
- Orm
- Condition:
Certified Refurbished
Professionally inspected, bench-tested, and firmware-verified, with configurations wiped. Restored to full working order and backed by our warranty.
100% Genuine Guaranteed
Global Delivery
Business Terms / PO Accepted
3 Year Extended Warranty
Same-day Shipping
30-Day Money Back Guarantee
Shipping:
Payment:
3 Year Extended Warranty
Same-day Shipping
30-Day Money Back Guarantee
Need Additional Discount on Product?
Request a quote below - Get Exclusive Pricing and Support.
Shipping:
Payment:
Built Global. Stocked Local.
Regional teams and 25+ distribution partners keep stock near you and accountability in your time zone.
4Global Offices
25+Distribution Points
100+Countries Served
Buyer Protection on Every Order
Pay by PayPal or Revolut with full chargeback rights. Order on PO terms, Net-30 for government.
Verified By Federal Bodies
Every registration we claim is public record — check our federal contractor status yourself before you spend a dollar.
- RegisteredCAGE CODE: 97UU8
- VerifiedD-U-N-S® #: 118879150
- ListedUEI: VFVEQ7Q9LH31
Since 2016, Enterprise-Trusted
Ten years serving buyers who audit their vendors. From federal agencies to 20,000+ enterprise clients worldwide.
10+Years Operating
20,000+Clients Served
150K+SKUs Available
378929-B21-C Overview
378929-B21-C is an SFP+ transceiver designed for high-performance networking, supporting a data rate of 10G and featuring an LC connector for efficient optical interfacing. It offers long-range transmission over single-mode fiber and complies with Ethernet and Fibre Channel protocols, making it well-suited for telecom and enterprise environments.
This compact module measures approximately 0.6 inches in height, 0.75 inches in width, and 2.5 inches in depth, ensuring easy integration into dense data center configurations. With robust design and precise performance specifications, the 378929-B21-C transceiver is engineered for reliability and versatility across various high-speed networking use cases.
378929-B21-C price is is available on request. Get immediate quote.
Request bulk order quote for 378929-B21-C for additional pricing. Browse the full Hpe Blade Server Compatible Sfp series or explore all Orm products.
378929-B21-C Specifications
- Product Type
- Transceiver
- Brand
- Orm
- Form Factor
- SFP+
- Data Rate
- 10G
- Connector Type
- LC
- Wavelength
- 1310 nm
- Transmission Distance
- Long-Range
- Fiber Type
- Single-mode
- Max Distance
- 10 km
- Supported Protocols
- Ethernet, Fibre Channel
- Network Interface
- Fiber
- Power Consumption
- 1.5W
- Operating Temperature
- 0 to 70°C
- Storage Temperature
- -40 to 85°C
- Input Voltage
- 3.3V
- Compatibility
- Cisco, Juniper, Huawei, Arista
- Product Name
- 378929-B21-C 10G LR SFP+ Transceiver
- Height
- 0.6 inches
- Width
- 0.75 inches
- Depth
- 2.5 inches
- Weight
- 0.2 lbs
Speak To a Hardware Specialist in Your Region
Mon–Fri: [09:00-16:00]
Avg. response under 30 mins
Product Comparison Table 
| 378929-B21-C |  378928-B21-C | |
|---|---|---|
| Product Type | Transceiver | Transceiver |
| Form Factor | SFP+ | QSFP |
| Data Rate | 10G | 100G |
| Connector Type | LC | MPO |
| Wavelength | 1310 nm | 850nm |
| Transmission Distance | Long-Range | Short-Range |
| Fiber Type | Single-mode | Multi-mode |
| Max Distance | 10 km | 100 meters |
| Supported Protocols | Ethernet, Fibre Channel | Ethernet, Fibre Channel |
| Network Interface | Fiber | Ethernet |
| Power Consumption | 1.5W | 3.5W |
| Operating Temperature | 0 to 70°C | 0 to 70°C |
| Storage Temperature | -40 to 85°C | -40 to 85°C |
| Input Voltage | 3.3V | 3.3V |
| Compatibility | Cisco, Juniper, Huawei, Arista | Cisco, Juniper, Huawei, Arista |
| Product Name | 378929-B21-C 10G LR SFP+ Transceiver | 378928-B21-C High-Speed QSFP Transceiver |
| Height | 0.6 inches | 0.25 |
| Width | 0.75 inches | 0.90 |
| Depth | 2.5 inches | 1.50 |
| Weight | 0.2 lbs | 0.05 |
Compliance & Warranty
100% Genuine Product Guarantee
Every unit is authentic, sourced through trusted and authorised channels, and serial-verified on request. Genuine networking and IT hardware, guaranteed, or your money back.
Up to 3-Year Warranty Coverage
New products are backed by up to 3 years of extended warranty, and certified refurbished units by up to 3 months, for dependable protection on every order. Coverage is clear, honoured in full, and confirmed on each product page.
Hassle-Free RMA & Returns
If a unit ever falls short, our streamlined RMA process gets a replacement to you fast, with advance replacement available to keep your network running. No jargon, no runaround.
Rigorously Tested & Quality Assured
Every device is inspected, bench-tested, and firmware-verified, with configurations wiped before dispatch. Additional testing can be arranged to confirm full working condition on request.
Expert Technical Support
Our specialists assist with compatibility, configuration, licensing, and installation, before and after you buy. Real hardware expertise, whenever you need it.
Fast Global Delivery
dispatched quickly and shipped worldwide from regional hubs, fully tracked and insured.
Reviews & Ratings
D
Dean Mercer
5
Perfect for our HP BladeSystem. Recognized instantly and provides stable 1000BASE-SX performance. Rock-solid reliability for our multi-mode links.
E
Eve Thorne
5
High-quality SX transceivers. These 378929-B21 compatible units work flawlessly in our blades. Fast, reliable, and very cost-effective. Satisfied.
F
Finn Vane
5
Zero issues with these multi-mode SFPs. They provide a clean signal and reliable gigabit speeds. Ideal for cluster interconnects.
G
Gale Ross
5
Seamless integration with HP hardware. These SX modules deliver consistent performance. Robust build quality and perfect for data center use.
H
Hope Beaumont
4
Excellent value for our BladeSystem expansion. Recognized by Virtual Connect modules immediately. Steady throughput and zero signaling errors. Highly recommended.
I
Ian Grant
4
Top-tier SX performance. These modules are well-built and provide a robust connection for our internal blade network. Very reliable.
Questions & Answers
What is the HP 378929-B21-C 1000BASE-SX SFP module?
The HP 378929-B21-C 1000BASE-SX SFP is a hot-pluggable gigabit transceiver designed for HP BladeSystem c-Class servers, providing reliable 1 Gbps fiber connectivity over multimode fiber.
Which HP BladeSystem servers support the 378929-B21-C 1000BASE-SX SFP?
This SFP module is fully compatible with HP BladeSystem c7000, c3000, and associated interconnect blades that feature SFP ports.
What fiber cable and connector type does this module use?
The 378929-B21-C uses 50/125 µm or 62.5/125 µm multimode fiber with LC duplex connectors for optimal optical performance.
What is the maximum cable reach of the 1000BASE-SX SFP?
It supports up to 550 meters on OM4 fiber, 275 meters on OM3 fiber, and 220 meters on OM2 multimode fiber at 1 Gbps.
Which wavelength does this SFP transceiver operate at?
The module operates at an 850 nm VCSEL wavelength, ensuring compatibility with industry-standard multimode optics.
Is the 378929-B21-C SFP hot-swappable?
Yes. The 1000BASE-SX SFP is hot-swappable, allowing module insertion or removal without powering down the server or switch.
What data rate does the 1000BASE-SX SFP support?
This module supports IEEE 802.3z 1000 Mbps (1 Gbps) full-duplex operation over multimode fiber.
Can I use this HP SFP in non-HP switches or routers?
While it meets IEEE 802.3z standards and often interoperates with third-party equipment, we recommend using it in HP BladeSystem environments for guaranteed compatibility.
How do I install the 378929-B21-C SFP module?
1. Power on or leave the system running. 2. Align the SFP module with the port. 3. Slide in until the latch clicks. 4. Confirm link LEDs illuminate.
How can I verify the module is functioning correctly?
Use HP Onboard Administrator or CLI (e.g., show interface transceiver) to check transceiver status, diagnostics, and link LEDs for an active connection.
What should I check if I experience link issues?
Verify fiber polarity, clean LC connectors, ensure correct fiber type, reseat the SFP, and confirm remote device configuration matches 1000BASE-SX settings.
What environmental conditions does this SFP support?
Operating temperature: 0 °C to 70 °C; storage: –40 °C to 85 °C; relative humidity: 5%–85% non-condensing.
Is the 378929-B21-C SFP environmentally compliant?
Yes. It is RoHS-compliant and meets WEEE and other regional environmental regulations for hazardous substances.
Which industry standards does the 1000BASE-SX module comply with?
It complies with IEEE 802.3z, SFP Multi-Source Agreement (MSA), and HP’s transceiver interoperability standards.
What warranty and support are provided?
HP offers a one-year limited warranty and full access to HP support services, including firmware updates and global service coverage.
How do I choose between 1000BASE-SX and 1000BASE-LX SFPs?
Choose 1000BASE-SX for multimode fiber up to 550 m; select 1000BASE-LX for single-mode fiber applications up to 10 km.
Can I mix different SFP speeds and types in the same chassis?
Yes. BladeSystem interconnect ports support mixed SFP modules but ensure each port’s configuration matches the installed transceiver type and speed.