The article closes a technical series from RTK-Service’s support team about Raman optical amplifiers. Its final installment focuses on the DWDM Surpass hiT 7300. The equipment is identified as a Coriant product, with Coriant serving as the vendor under review. The post extends the series’ comparison of amplifier systems by examining this model in the concluding installment. RTK-Service says its engineers have prepared a surprise for readers at the end of the article. The introduction does not disclose what that surprise contains. It presents the DWDM Surpass hiT 7300 as the subject of the series’ final technical discussion.