Can I use standard OM3 or OM4 multimode fiber patch cords with this 10km SFP28 optical transceiver?

No, this is a single-mode transceiver operating at 1270nm/1330nm wavelengths and will not establish a link over multimode fiber.

Do I need to deploy these 25G BiDi SFP28 modules in complementary pairs?

Yes, the LS-BL273325-10C (1270nm-TX/1330nm-RX) must be paired with the complementary LS-BL332725-10C (1330nm-TX/1270nm-RX) module at the remote end of the link.

Can this 25G BiDi optical module be used for 5G wireless network front-haul links utilizing eCPRI protocols?

Yes, its physical layer design fully supports high-speed 25G eCPRI and CPRI wireless protocols alongside standard Ethernet data transmission.

Will the commercial module drop links if deployed in an uncooled street-side cabinet during summer?

If the cabinet interior exceeds 70°C, thermal protection may trigger; we highly recommend our industrial wide-temperature series for uncooled outdoor locations.

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Mellanox SFP28-25G-BX Compatible LINK-PP 25G SFP28 BiDi 1270nm-TX/1330nm-RX 10km Simplex LC/UPC DOM SMF Optical Transceiver Module

Name: Mellanox SFP28-25G-BX Compatible LINK-PP 25G SFP28 BiDi 1270nm-TX/1330nm-RX 10km Simplex LC/UPC DOM SMF Optical Transceiver Module
Brand: LINK-PP
SKU: 212901
Price: 33.97 USD
Availability: InStock
Rating: 4.8 (12 reviews)

# 212901

Product: Mellanox SFP28-25G-BX Compatible LINK-PP 25G SFP28 BiDi 1270nm-TX/1330nm-RX 10km Simplex LC/UPC DOM SMF Optical Transceiver Module
SKU: 212901
P/N: LS-BL273325-10C
Price: $ 39.5
Stock: 901 in Stock
Sold: 952
Product URL: https://www.l-p.com/products/477061.htm

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Manufacture: LINK-PP

P/N: LS-BL273325-10C

Compatible:: Cisco; LINK-PP; Arista; Broadcom; Brocade; FS; HW; Juniper; Mellanox

Compatible P/N:: MMA2L20-BXD-I | 10km; MMA2L20-BXU-I | 10km; SFP28-25G-BX | 10km; SFP-25G23-BX20-I | 20km; SFP-25G32-BX20-I | 20km; SFP28-25G-BX | 20km; SFP28-25G-BX40 | 40km; SFP28-25G-BX40-I | 40km

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Mellanox SFP28-25G-BX Compatible LINK-PP 25G SFP28 Specifications

SFP28-25G-BX operates as an advanced 25G SFP28 BiDi optical transceiver module that leverages a 1270nm DFB laser alongside a highly responsive 1330nm PIN receiver to deliver a precise receiver sensitivity of less than -13dBm over links stretching up to 10km across 9/125µm single-mode fiber (SMF) within a standard 0°C to +70°C commercial temperature envelope.

Mellanox Part Number	SFP28-25G-BX	Vendor Name	LINK-PP
Form Factor	SFP28	Max Data Rate	25.78Gbps
Wavelength	1270nm-TX/1330nm-RX	Max Cable Distance	10km
Connector	Simplex LC	Media	SMF
Transmitter Type	DFB	Receiver Type	PIN
TX Power	-3 to +5dBm	RX Power	-14 to +3dBm
Receiver Sensitivity	<-13dBm	Receiver Overload	2dBm
FEC Function	Not Supported	Operating Temperature Range	0°C to +70°C
Protocols	MSA Compliant, CPRI, eCPRI	Warranty	5 Years

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Q: Can I use standard OM3 or OM4 multimode fiber patch cords with this 10km SFP28 optical transceiver? By P***y on 2025-12-08

A: No, this is a single-mode transceiver operating at 1270nm/1330nm wavelengths and will not establish a link over multimode fiber. By admin on 2025-12-09
Q: Do I need to deploy these 25G BiDi SFP28 modules in complementary pairs? By M***e on 2025-11-17

A: Yes, the LS-BL273325-10C (1270nm-TX/1330nm-RX) must be paired with the complementary LS-BL332725-10C (1330nm-TX/1270nm-RX) module at the remote end of the link. By admin on 2025-11-18
Q: Can this 25G BiDi optical module be used for 5G wireless network front-haul links utilizing eCPRI protocols? By O***l on 2025-09-25

A: Yes, its physical layer design fully supports high-speed 25G eCPRI and CPRI wireless protocols alongside standard Ethernet data transmission. By admin on 2025-09-26
Q: Will the commercial module drop links if deployed in an uncooled street-side cabinet during summer? By N***s on 2025-07-05

A: If the cabinet interior exceeds 70°C, thermal protection may trigger; we highly recommend our industrial wide-temperature series for uncooled outdoor locations. By admin on 2025-07-06

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J***n

Mexico

Verified Purchase

5 .0

2026-04-25

As a principal infrastructure engineer managing a metro-scale enterprise campus network backbone, transceiver reliability is non-negotiable for our operations. We thoroughly benchmarked the LINK-PP LS-BL273325-10C 25G SFP28 BiDi against several higher-priced alternatives. Operating over an 8.7km single-mode fiber (SMF) link, this 1270nm-TX/1330nm-RX transceiver demonstrated stellar performance parameters. Our optical link budget calculation estimated an insertion loss of roughly 3.2dB across the link, including three patch panels, and the receiver sensitivity stayed well below the -13dBm threshold with ample headroom. Digital Diagnostics Monitoring (DDM) telemetry was queried via SNMP into our Prometheus/Grafana stack, showing highly stable laser temperature profiles and laser bias currents that track linearly with traffic volume. For anyone looking to achieve single fiber savings while scaling their access layer to true 25GBASE-U speeds, these modules deliver excellent signal integrit

167 Helpful vote Comments

A***d

Egypt

Verified Purchase

5 .0

2026-04-03

DOM telemetry readings match our Fluke testers perfectly, fast dispatch from LINK-PP. (^_^)

73 Helpful vote Comments

B***l

South Africa

Verified Purchase

5 .0

2026-03-18

Running these 1270nm-TX/1330nm-RX BiDi optical modules on 9km single fiber strands, attenuation is well within margin bounds.

39 Helpful vote Comments

S***y

Philippines

Verified Purchase

5 .0

2026-03-05

Great option for our enterprise access layers. We paired the LS-BL273325-10C transceiver module with the matching 1330nm-TX complement module across an 8km single-mode fiber run. Optical signal integrity remains excellent despite a few legacy patch panels along the path.

47 Helpful vote Comments

H***k

Indonesia

Verified Purchase

5 .0

2026-02-22

Upgraded our regional ISP edge aggregation boxes using these 25G SFP28 single-fiber modules. They follow SFF-8431 specs precisely, seating securely without any physical resistance. The simplex LC/UPC connector clicks in firmly. Optical budget is generous enough to handle multiple fusion splices along our older fiber plant. d=(^o^)=b

59 Helpful vote Comments

L***s

Viet Nam

Verified Purchase

5 .0

2026-01-28

We deployed a batch of these LS-BL273325-10C 25G SFP28 optics for our university campus network expansion. Moving from 10G to 25G SFP28 BiDi was seamless since we didn't have to lease additional dark fiber. The simplex LC setup works exactly as advertised, keeping insertion loss well under our strict budget. Will buy bulk next quarter.

84 Helpful vote Comments

S***z

United States

Verified Purchase

4 .0

2026-01-19

Tested these 10km BiDi SFP28 modules across a legacy fiber plant with multiple patch panels, and the insertion loss remained well within budget limits. The modules run cool and pull less than 1.5W per port. Shipping took one extra day to clear our local regional customs hub, which cut it close for our deployment window. Will definitely order again, just with a larger time buffer next time! ✈️

34 Helpful vote Comments

R***d

Brazil

Verified Purchase

5 .0

2025-10-05

From a procurement and network operations perspective, finding a high-reliability supplier for optical components that fully comply with standard SFF-8472 digital optical monitoring interfaces can be tricky. We shifted our bulk procurement for mid-mile telecom aggregation to LINK-PP, and this LS-BL273325-10C 25G BiDi module proves why they are a trusted name. We deployed these across a 9.5km corporate campus network backbone link. Leveraging standard single-mode fiber patch cables, the simplex LC/UPC connector provided a perfect physical mate with zero axial misalignment. The DFB laser transmitter handles signaling mode cleanly, maintaining a tight spectral width that effectively eliminates any risk of chromatic dispersion over the 10km rated distance. Our monitoring tools track real-time DOM metrics, showing an operating temperature well within the standard 0°C to 70°C commercial range even during summer peak loads in unconditioned distribution frames. These are a solid investment for

147 Helpful vote Comments

S***x

Russian Federation

Verified Purchase

5 .0

2025-08-24

Deployed a set of these LS-BL273325-10C optics to handle a critical high-speed link between our corporate headquarters and our secondary disaster recovery site located 8.2km away. The existing link was congested at 10G, and upgrading to 25G SFP28 BiDi allowed us to triple our synchronization throughput without changing a single inch of our single-mode fiber infrastructure. The simplex LC setup works perfectly. We paired this unit with the complementary 1330nm-TX/1270nm-RX optic on the remote side. Both ends established a stable link instantly on our switches. No framing errors, zero packet retransmissions, and a perfectly flat latency profile during full-capacity disaster recovery simulation testing. The Digital Diagnostics Monitoring interface provides instantaneous updates on transceiver metrics, giving us peace of mind for mission-critical storage replication. LINK-PP has delivered a highly reliable, plug-and-play solution that saved our infrastructure costs.

129 Helpful vote Comments

L***n

Netherlands

Verified Purchase

4 .0

2025-08-16

The 25G SFP28 BiDi links came up instantly on our Arista switches, and the DOM readings are spot on. However, the package courier left the bulk box on our loading dock in the rain instead of bringing it inside. Fortunately, LINK-PP's internal anti-static bags sealed the optics perfectly from moisture, but local delivery tracking could be better handled.

22 Helpful vote Comments

B***d

Italy

Verified Purchase

5 .0

2025-07-08

Solid 25G BiDi optical modules, saved us a ton on single-mode fiber infrastructure across our enterprise campus backbone.

57 Helpful vote Comments

L***s

Sweden

Verified Purchase

5 .0

2025-07-02

Our engineering team recently completed a large-scale data center migration project involving over two hundred 25G Ethernet server-to-switch interconnects. We chose the LS-BL273325-10C SFP28 modules for our high-density aggregation frames. A major technical hurdle with generic 25G optics is often clock and data recovery (CDR) unlock or signal integrity degradation when operating at peak 25.78Gbps line rates under full load. After a rigorous 72-hour burn-in phase using pseudorandom binary sequence (PRBS31) test patterns, these transceivers maintained zero pre-FEC and post-FEC bit errors. The physical build quality is robust; the zinc alloy housing provides superb EMI shielding, and the simplex LC/UPC optical interface ensures a secure mechanical fit that prevents physical drift or micro-disconnections. Furthermore, the real-time DOM telemetry features allowed us to map exact optical power values directly from our switch CLI. Outstanding engineering work by LINK-PP optical module!

147 Helpful vote Comments