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| Brand Name: HILINK | Certification: CE FCC Rohs | 
| Model Number: HL-QSFP-SR4 | Minimum Order Quantity: 1pcs | 
| Payment Terms: T/T, Western Union, MoneyGram,Paypal | Place of Origin: Guangdong, China | 
| Shenzhen HiLink Technology Co.,Ltd. [Guangdong,China] | |
| Verified Supplier | |
| Brand Name: Huawei | Certification: CE | 
| Model Number: QSFP-40G-SR4 | Place of Origin: China | 
| Model: QSFP-40G-SR4 | Transceiver form factor: QSFP | 
| LonRise Equipment Co. Ltd. [Shanghai,China] | |
| Verified Supplier | |
| Brand Name: Mray | Certification: CE, FCC, RoHs, ISO9001 | 
| Model Number: QSFP-40G-SR4 | Minimum Order Quantity: 1 piece | 
| Delivery Time: 1~2 days for samples | Payment Terms: T/T, Western Union, L/C | 
| Shenzhen Miray Communication Technology Co., Ltd. [China] | |
| Active Member | |
| Brand Name: OLKOPTO | Certification: CE, RoHS, FCC, FDA, UL, EMC, ISO9001 | 
| Model Number: OLSQ854XM-CDS1 | Minimum Order Quantity: 1 pc | 
| Delivery Time: 3-5 working days | Payment Terms: T/T | 
| Shenzhen Olinkcom Technology Co.,Ltd [China] | |
| Verified Supplier | |
| Brand Name: Sun Communication | Certification: FCC, CE, RoHS, ISO9001 | 
| Model Number: QSFP-40G-SR4 | Minimum Order Quantity: 100 PCS | 
| Place of Origin: Guangdong, China | Price: Negotiable | 
| Dongguan sun Communication Technology Co., Ltd. [Guangdong,China] | |
| Verified Supplier | |
| Brand Name: Finisar | Certification: ROHS | 
| Model Number: Finisar FTLC9558REPM | Minimum Order Quantity: 1 | 
| Delivery Time: 3-4 days | Payment Terms: L/C, T/T, Western Union, MoneyGram, D/A | 
| TOPSTAR TECHNOLOGY INDUSTRIAL CO., LIMITED [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: E-link | Certification: CE,FCC,RoHs | 
| Model Number: LNK-QSFP28-SR4 | Minimum Order Quantity: 1 pcs | 
| Delivery Time: 7 Working days | Payment Terms: Western Union, L/C, T/T, MoneyGram, Paypal | 
| E-link China Technology Co., Ltd. [Guangdong,China] | |
| Verified Supplier | |
| 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: YXFiber | Certification: CE RoHS FCC ISO9001 | 
| Model Number: QSFP-40G-SR4 | 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 | |
| Brand Name: UTOPTEK | Certification: CE FCC RoHs | 
| Model Number: QSFP-40G-ER4 | Minimum Order Quantity: 1piece | 
| Delivery Time: 1-2days | Payment Terms: T/T, Western Union,Paypal, Alipay,Wechat etc. | 
| Shenzhen UTOP Technology Co., Ltd. [Guangdong,China] | |
| Site Member | |
| Brand Name: 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: GEZHI or OEM | Certification: CE RoHS FCC | 
| Model Number: 40GBASE QSFP+ SR4 | Minimum Order Quantity: 1pc | 
| Delivery Time: 2-7 work days | Payment Terms: T/T, Western Union | 
| Gezhi Photonics (Shenzhen) Technology Co., Ltd. [Guangdong,China] | |
| Verified Supplier | |
| Brand Name: cisco | Certification: ISO9001 | 
| Model Number: QSFP001 | Minimum Order Quantity: 1 piece | 
| Delivery Time: 5-10 days upon order quantitities | Payment Terms: L/C, T/T, Western Union,Paypal | 
| Shenzhen Wangtong Industry Company Limited [Guangdong,China] | |
| Active Member | |
| Brand Name: Optfocus | Certification: CE&FC | 
| Model Number: QSFP-40G-SR4 | Minimum Order Quantity: 100 pcs | 
| Delivery Time: 5-7 working days | Payment Terms: L/C, D/A, D/P, T/T, Western Union, MoneyGram | 
| Shenzhen Optfocus Technology Co., Ltd. [Guangdong,China] | |
| Site Member | |
| Brand Name: LINK-PP | Certification: ISO 9001,ISO 14001,UL,SGS,REACH168 | 
| Model Number: FTL410QE3C | Minimum Order Quantity: 10/100/25K | 
| Delivery Time: Stock | Payment Terms: TT,NET30/60/90 Days | 
| LINK-PP INT'L TECHNOLOGY CO., LIMITED [Guangdong,China] | |
| Verified Supplier | |
| Brand Name: NuFiber | Certification: CE FCC Rohs | 
| Model Number: QSFP28-100G-SR4 | Minimum Order Quantity: 1 piece | 
| Delivery Time: Within 1-3 work days | Payment Terms: L/C, T/T, Western Union,Credit Card | 
| Shenzhen Fivision Digital Technology Co.,Ltd [China] | |
| Site Member | |
| Brand Name: OPTICKING | Certification: CE, FCC, UL | 
| Model Number: KQSF0A-0085MM01X(SR4) | Minimum Order Quantity: 100 | 
| Delivery Time: 7 days | Payment Terms: T/T | 
| Shenzhen Opticking Technology Co.,Ltd [China] | |
| Verified Supplier | |