Which exact fiber patch cord and paired module do I need to establish a working 100G link?

This module uses a Simplex LC connector over standard single-mode fiber (SMF / OS2 9/125μm) up to 20km. Since this unit transmits at 1311nm and receives at 1291nm (Red pull tab), the opposite end of the fiber strand must be equipped with the complementary LQ-BLA100-L21C module (1291nm-TX / 1311nm-RX, Purple pull tab) to establish a synchronized bidirectional link.

How does the optical performance and packet error rate of this BiDi optic compare against original brand 100GBASE-BX20 modules?

This module delivers identical carrier-grade performance to OEM equivalents. Equipped with an industry-grade 1311nm EML transmitter, high-sensitivity PIN receiver, integrated DSP with KP4 FEC, and power consumption under 4W, it guarantees zero-packet-loss transmission over 20km single-mode fiber at a fraction of the OEM cost.

Can this QSFP28 BiDi optic operate in harsh outdoor telecom cabinets, or is an industrial wide-temperature version available?

The standard LQ-BLB100-L21C is rated for commercial operating temperatures (0°C to +70°C). If you are deploying in non-climate-controlled outdoor enclosures or 5G cell tower base stations, please contact our engineering team to request the industrial wide-temperature version (-40°C to +85°C).

Does this transceiver comply with international telecommunications and environmental standards?

Yes, the module complies with IEEE 802.3cd/100GBASE-LR1, QSFP28 MSA, and SFF-8636 management specifications. It is fully certified under CE, FCC, RoHS, and REACH directives, meeting Class 1 Laser Safety standards (IEC 60825-1).

Can this LQ-BLB100-L21C module interoperate smoothly between a Cisco Nexus switch on one end and an Arista or Juniper switch on the other?

Yes. The module is engineered in full compliance with QSFP28 MSA and 100G Lambda MSA standards. We offer custom EEPROM vendor coding for Cisco, Arista, Juniper, Dell, Mellanox/NVIDIA, and Generic platforms to guarantee 100% host recognition, DDM functionality, and seamless cross-platform optical interoperability.

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NVIDIA/Mellanox QSFP-BX20-100G Compatible LINK-PP 100G QSFP28 BiDi 1311nm-TX/1291nm-RX 20km DOM Simplex LC SMF Optical Transceiver Module

Name: NVIDIA/Mellanox QSFP-BX20-100G Compatible LINK-PP 100G QSFP28 BiDi 1311nm-TX/1291nm-RX 20km DOM Simplex LC SMF Optical Transceiver Module
Brand: LINK-PP
SKU: 223816
Price: 2170.96 USD
Availability: InStock
Rating: 4.9 (17 reviews)

# 223816

Product: NVIDIA/Mellanox QSFP-BX20-100G Compatible LINK-PP 100G QSFP28 BiDi 1311nm-TX/1291nm-RX 20km DOM Simplex LC SMF Optical Transceiver Module
SKU: 223816
P/N: LQ-BLB100-L21C
Price: $ 2,467
Stock: 306 in Stock
Sold: 775
Product URL: https://www.l-p.com/products/494724.htm

For Order Over $1000 Get $15.00 Off , Code: Linkpp15

For Order Over $3000 Get $50.00 Off , Code: Linkpp50

For Order Over $5000 Get $100.00 Off , Code: Linkpp100

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Manufacture: LINK-PP

P/N: LQ-BLB100-L21C

Compatible:: Cisco; LINK-PP; Arista; Dell; FS; Generic; HPE Aruba; Juniper; NVIDIA/Mellanox

Compatible P/N:: QSFP-MBIDI-100G | 100m; QSFP-SR1.2-100G | 100m; QSFP-BX10-100G | 10km; QSFP-BX20-100G | 20km

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NVIDIA/Mellanox QSFP-BX20-100G Compatible LINK-PP 100G QSFP28 Specifications

The NVIDIA/Mellanox QSFP-BX20-100G Compatible LINK-PP module is a high-performance 100G BiDi QSFP28 optical transceiver designed for efficient single-fiber bidirectional networking. It features a 106.25Gb/s PAM4 optical signal rate alongside a 4x25.78Gb/s NRZ CAUI-4 electrical interface. With integrated KP4 FEC and a low power consumption of under 4W, this commercial-grade module ensures exceptional stability for high-density architectures.

NVIDIA/Mellanox QSFP-BX20-100G Compatible LINK-PP 100G BiDi QSFP28 Specifications

NVIDIA/Mellanox Part Number	QSFP-BX20-100G	Vendor Name	LINK-PP
Form Factor	QSFP28	Max Data Rate	106.25Gbps
Wavelength	1311nm-TX/1291nm-RX	Max Cable Distance	20km
Connector	Simplex LC	Media	SMF
Transmitter Type	EML	Receiver Type	PIN
Modulation (Electrical)	4x 25G-NRZ	Modulation (Optical)	1x 100G-PAM4
DDM/DOM	Supported	Operating Temperature Range	0°C to +70°C
Protocols	QSFP28 MSA	Warranty	5 Years

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Q: Which exact fiber patch cord and paired module do I need to establish a working 100G link? By D***n on 2025-11-22

A: This module uses a Simplex LC connector over standard single-mode fiber (SMF / OS2 9/125μm) up to 20km. Since this unit transmits at 1311nm and receives at 1291nm (Red pull tab), the opposite end of the fiber strand must be equipped with the complementary LQ-BLA100-L21C module (1291nm-TX / 1311nm-RX, Purple pull tab) to establish a synchronized bidirectional link. By admin on 2025-11-22
Q: How does the optical performance and packet error rate of this BiDi optic compare against original brand 100GBASE-BX20 modules? By D***g on 2025-06-19

A: This module delivers identical carrier-grade performance to OEM equivalents. Equipped with an industry-grade 1311nm EML transmitter, high-sensitivity PIN receiver, integrated DSP with KP4 FEC, and power consumption under 4W, it guarantees zero-packet-loss transmission over 20km single-mode fiber at a fraction of the OEM cost. By admin on 2025-06-19
Q: Can this QSFP28 BiDi optic operate in harsh outdoor telecom cabinets, or is an industrial wide-temperature version available? By C***n on 2025-05-02

A: The standard LQ-BLB100-L21C is rated for commercial operating temperatures (0°C to +70°C). If you are deploying in non-climate-controlled outdoor enclosures or 5G cell tower base stations, please contact our engineering team to request the industrial wide-temperature version (-40°C to +85°C). By admin on 2025-05-02
Q: Does this transceiver comply with international telecommunications and environmental standards? By E***l on 2025-04-24

A: Yes, the module complies with IEEE 802.3cd/100GBASE-LR1, QSFP28 MSA, and SFF-8636 management specifications. It is fully certified under CE, FCC, RoHS, and REACH directives, meeting Class 1 Laser Safety standards (IEC 60825-1). By admin on 2025-04-24
Q: Can this LQ-BLB100-L21C module interoperate smoothly between a Cisco Nexus switch on one end and an Arista or Juniper switch on the other? By E***n on 2024-12-30

A: Yes. The module is engineered in full compliance with QSFP28 MSA and 100G Lambda MSA standards. We offer custom EEPROM vendor coding for Cisco, Arista, Juniper, Dell, Mellanox/NVIDIA, and Generic platforms to guarantee 100% host recognition, DDM functionality, and seamless cross-platform optical interoperability. By admin on 2024-12-30

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D***s

India

Verified Purchase

5 .0

2026-07-20

Flawless 100G single-fiber link, highly recommended!

66 Helpful vote Comments

C***r

Portugal

Verified Purchase

5 .0

2026-06-26

Deployed across an 18.5km single-mode span connecting our primary DC to the disaster recovery site. KP4 FEC corrects all pre-FEC bit errors seamlessly, maintaining a consistent -3.2dBm optical Rx level.

168 Helpful vote Comments

S***l

Singapore

Verified Purchase

5 .0

2026-06-23

Paired with BLA side instantly. Pure plug-and-play.

181 Helpful vote Comments

P***n

Macao

Verified Purchase

5 .0

2026-05-08

Red pull tab makes BiDi A/B pairing identification super convenient in crowded patch panels.

89 Helpful vote Comments

W***z

Ethiopia

Verified Purchase

5 .0

2026-04-13

Excellent transceiver for expanding inter-building bandwidth over a single OS2 strand without re-cabling.

192 Helpful vote Comments

D***n

Germany

Verified Purchase

5 .0

2026-03-23

Deployed six units on Dell PowerSwitch; zero packet drops after two weeks of stress testing.

186 Helpful vote Comments

W***n

Viet Nam

Verified Purchase

5 .0

2026-03-21

Best value 100GBASE-BX20 optics on the market.

80 Helpful vote Comments

J***s

Denmark

Verified Purchase

5 .0

2026-02-08

Solid 20km QSFP28 BiDi optic. 5/5.

189 Helpful vote Comments

N***k

Mexico

Verified Purchase

5 .0

2026-01-23

Runs super cool under 4W in rack.

68 Helpful vote Comments

W***a

Italy

Verified Purchase

4 .0

2025-12-31

Box arrived slightly crushed during DHL transit, but this 100G BiDi transceiver works perfectly.

5 Helpful vote Comments

L***z

Sweden

Verified Purchase

5 .0

2025-12-24

Fast linkup on our edge data center spine.

186 Helpful vote Comments

J***n

Singapore

Verified Purchase

5 .0

2025-11-24

Cut our campus fiber lease costs in half.

167 Helpful vote Comments

A***l

Dominican Republic

Verified Purchase

5 .0

2025-09-25

Replaced dual-strand LR4 optics with this 100G QSFP28 BiDi 20km module across four remote PoP aggregation nodes. DDM thermal telemetry stays around 42°C under full 100Gbps line rate. Exceptional build quality!

119 Helpful vote Comments

R***l

Sweden

Verified Purchase

5 .0

2025-08-23

Clean simplex LC connection, zero frame loss.

105 Helpful vote Comments

A***a

Ireland

Verified Purchase

5 .0