HP 4TB 7.2K 3.5INCH SAS Hard Drive (693689-B21) Description Upgrade your system with this 4TB hard drive in order to significantly increase capacity, speed and responsiveness. This HP Midline SAS hard drive runs at a fast disk speed of 72,000 RPM which is ideal for stored data that will be accessed frequently. This product also has a standard transfer rate of 6Gbps. Protect your hard drive with a caddy This HP hard drive comes with a caddy to ensure compatibility with your system and to protect the drive from any potential damage. HP (HPE) is a market leader when it comes to server components including hard disk drives, and so you can have peace of mind that your drive will be of a high quality. This product is hot swappable which means that you can remove or add the drive whilst your system is running, thereby minimising system downtime. Rigorous testing process ensures excellent condition Our testing procedures ensure that every piece of equipment we refurbish is resold in excellent condition and performs to its maximum capabilities. The confidence we have in our products is reflected by the fact that all hard drives come with unbeatable Techbuyer warranties. Can't find what you're looking for? Take a look at our full range of hard drives or get in touch with our five-star rated sale team.