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| Brand Name: DONGWE | Certification: CE, FCC, RoHS | 
| Model Number: DW-D4085-03CQ | Minimum Order Quantity: 1 piece | 
| Delivery Time: 3-7 working days | Payment Terms: T/T | 
| Hongkong Dongwe Technologies Co., Ltd [Guangdong] | |
| Active Member | |
| Brand Name: SUNWISE | Certification: ROHS CE | 
| Model Number: QSFP-40G-SR4 | Minimum Order Quantity: Negotiable | 
| Delivery Time: jumper 3 ~ 7 days; fiber optic cable and equipment 7 ~ 15 days | Payment Terms: Western union,T/T,PayPal | 
| Sunwise Optical Communication Equipment Co.,Ltd [Guangdong,China] | |
| Verified Supplier | |
| Brand Name: OLKOPTO | Certification: ISO9001,ISO14001,OHSAS18001 | 
| Model Number: OLSQ854XM-CDS1 | Minimum Order Quantity: 1pcs | 
| Delivery Time: 3-5 working days | Payment Terms: TT/Net 30days | 
| Shenzhen Olinkcom Technology Co.,Ltd [China] | |
| Verified Supplier | |
| Brand Name: Q200-HDR-SR4 ptn sfp module | Certification: CE ptn sfp moduleQ200-HDR-SR4 | 
| Model Number: Q200-HDR-SR4 sfp module | Minimum Order Quantity: 10 | 
| Delivery Time: 2-3 days | Place of Origin: Q200-HDR-SR4 China | 
| LonRise Equipment Co. Ltd. [Shanghai,China] | |
| Verified Supplier | |
| Brand Name: Nufiber | Certification: CE FCC | 
| Model Number: QSFP-40G-SR4 | Minimum Order Quantity: 1 piece | 
| Delivery Time: 2-3 days | Payment Terms: T/T, Western Union | 
| Shenzhen Fivision Digital Technology Co.,Ltd [China] | |
| Site Member | |
| Brand Name: HILINK | Certification: CE FCC RoHS | 
| Model Number: HL-QSFP-IR4 | Minimum Order Quantity: 1pcs | 
| Delivery Time: 3-5 Working Days | Payment Terms: T/T, Western Union, MoneyGram,Paypal | 
| Shenzhen HiLink Technology Co.,Ltd. [Guangdong,China] | |
| Verified Supplier | |
| Brand Name: OLKOPTO | Certification: RoHs, FCC, CE, UL, ISO9001, ISO14001 | 
| Model Number: OLSQ85TXM-CDS1 | Minimum Order Quantity: 1 pc | 
| Delivery Time: 3-5 working days | Payment Terms: T/T or Net 30 days | 
| Shenzhen Olinkcom Technology Co.,Ltd [China] | |
| Verified Supplier | |
| Brand Name: GEZHI or OEM | Certification: CE/FCC/RoHS/TUV/UL | 
| Model Number: / | Minimum Order Quantity: 1pcs | 
| Delivery Time: 1~3working days after payment | Payment Terms: T/T, Paypal,Western Union | 
| Gezhi Photonics Co.,Ltd [Guangdong,China] | |
| Verified Supplier | |
| Brand Name: Neuter, OEM | Certification: CE/FCC/RoHS/TUV/UL | 
| Model Number: 100G-QSFP-SR4-A | Minimum Order Quantity: 1PCS | 
| Delivery Time: Within 1-3 working days after PO confirmed | Payment Terms: T/T, Western Union, L/C | 
| Ascent Optics Co.,Ltd. [Guangdong,China] | |
| Verified Supplier | |
| Brand Name: UNIFIBER-OEM | Certification: CE RoHS FCC | 
| Model Number: 40GBASE QSFP+ SR4 | Minimum Order Quantity: 5pcs | 
| Delivery Time: 5~7 Business days | Payment Terms: L/C, T/T | 
| Shenzhen Unifiber Technology Co.,Ltd [Guangdong,China] | |
| Verified Supplier | |
| Brand Name: Brocade | Certification: UL/CSA 62368 | 
| Model Number: 57-1000296-01 | Minimum Order Quantity: 1pcs | 
| Delivery Time: 5-7 working days | Payment Terms: T/T, Western Union, MoneyGram | 
| TOPSTAR TECHNOLOGY INDUSTRIAL CO., LIMITED [China] | |
| Verified Supplier | |
| Brand Name: Gvdlink | Certification: CE,ROHS,FCC | 
| Model Number: GVD-QSFP-40G-SR4 | Minimum Order Quantity: 1pcs | 
| Delivery Time: 1-5 working days | Payment Terms: T/T, Western Union, MoneyGram, L/C,Paypal | 
| Shenzhen Gaveid communication Technology Co.,Ltd [Guangdong,China] | |
| Verified Supplier | |
| Brand Name: AscentOptics/Neuter, OEM | Certification: CE/FCC/RoHS/TUV/UL | 
| Model Number: 40G-QSFP-SR4-A | Minimum Order Quantity: 1PCS | 
| Delivery Time: Within 1-3 working days after PO confirmed | Payment Terms: T/T, Western Union, L/C | 
| Ascent Optics Co.,Ltd. [Guangdong,China] | |
| Verified Supplier | |
| Brand Name: Hello Signal | Certification: IEC 60825-1:2007 | 
| Model Number: 40G QSFP+ | Minimum Order Quantity: no limit | 
| Delivery Time: Normally 10 workingdays | Payment Terms: T/T | 
| HANGZHOU ZION COMMUNICATION CO., LTD [Zhejiang,China] | |
| Verified Supplier | |
| Brand Name: Huawei | Certification: CE FCC RoHS | 
| Model Number: QSFP-40G-iSR4 | Minimum Order Quantity: Negotiable | 
| Delivery Time: 7-15 days | Payment Terms: L/C, D/A, D/P, T/T, Western Union, MoneyGram | 
| Uonel Co.Limtied [China] | |
| Site Member | |
| Brand Name: Huawei | Certification: CE FCC RoHS | 
| Model Number: QSFP-40G-eSR4 | Minimum Order Quantity: Negotiable | 
| Delivery Time: 7-15 days | Payment Terms: L/C, D/A, D/P, T/T, Western Union, MoneyGram | 
| Uonel Co.Limtied [China] | |
| Site Member | |
| Brand Name: Generic | Certification: CE,FCC,RoHs, TUV,UL | 
| Model Number: QSFP-4X10G-LR-S | Minimum Order Quantity: 1 pc | 
| Delivery Time: 1-5 work days | Payment Terms: T/T, L/C, Western Union | 
| Shenzhen Gigaopto Technology Co., Ltd. [China] | |
| Verified Supplier | |
| Brand Name: Gvdlink | Certification: CE,ROHS,FCC | 
| Model Number: GVD-QSFP-40G-PSM4 | Minimum Order Quantity: 1pcs | 
| Delivery Time: 1-5 working days | Payment Terms: T/T, Western Union, MoneyGram, L/C,Paypal | 
| Shenzhen Gaveid communication Technology Co.,Ltd [Guangdong,China] | |
| Verified Supplier | |
| Brand Name: Topnet System | Certification: CE/FCC/RoHS/TUV/UL | 
| Model Number: QSFP-40G-SR4 | Minimum Order Quantity: Negotiable | 
| Delivery Time: jumper 3 ~ 7 days; fiber optic cable and equipment 7 ~ 15 days | Payment Terms: Western union,T/T,PayPal | 
| Sunwise Optical Communication Equipment Co.,Ltd [Guangdong,China] | |
| Verified Supplier | |
| Brand Name: YXFiber | Certification: CE RoHS FCC ISO9001 | 
| Model Number: YXF-QP-M85M-03D | Minimum Order Quantity: 1pcs | 
| Delivery Time: 1~3working days after payment | Payment Terms: T/T, L/C, Western Union | 
| Wuhan Yongxinfeng Science & Technology Co., Ltd. [Hubei,China] | |
| Active Member | |