Seagate SV35.2 ST3750640AV 750GB 7200 RPM 16MB Cache IDE Ultra ATA100 3.5" Hard Drive The digital video surveillance industry has been greatly enhanced by the latest advances in video compression, storage and pattern/face recognition The surveillance solutions market has moved from analog tape-based systems to digital hard drive-based systems. This 750GB SV35 7200.2 Ultra ATA/100 Internal Hard Drive takes advantage of this technology, allowing multiple data streams at once