Would one of these work? It looks to be a combination of both
UART PL2303HX Module 2016 Adapter Converter TTL USB To RS232 USB to COM Cable 877792008701 | eBay
Hi guys,
Both my NVRs have died this week. One due to PSU failure and one self inflicted :|. My Hikvision DS-7616N-E2 was running a hacked firmware (which I found out later) and tried to update it to a version I found here. My NVR is now stuck on the boot cycle and beeping roughly 15 times...