My Q-See QT504 went black on all channels. The 1TB hard drive (WD AV-GP) has failed. After watching a video from YT, I ordered this device. When it arrived (2 days) I opened the package, took out the raw drive and put it in my QT504 box. Just 2 plug-ins with SATA drives. Device switched on and it immediately recognized the new HD. Reset all settings and selected format for this disc. After 5 minutes my Q-See QY504 was operational again on all channels! Very happy with it!
uxcell 3.5" HDD Screw Black 200pcs for Computer PC Case - Flat Phillips Head - 6#-32 - Hard Drive Fasteners
10 Review
MacBook Retina 13-inch (A1425, A1502) and π© 15-inch (A1398) Bottom Case Screw Set with Pentalobe Screwdriver
11 Review
π₯οΈ Helifouner 450-Piece Computer Standoffs Spacer Screws Kit: Ideal for Hard Drive, Motherboard, Fan, Power Graphics & Computer Cases
10 Review
Glarks 660 Pieces Phillips Assortment Motherboard
10 Review