Hp Envy 17 Specifications : 

Platform: PC
Primary Color: Silver
Processor Brand: Intel
Processor Type: Intel Core i7-5500U Processor
Processor Speed: 2.40 GHz - 3.1 GHZ
System Ram: 12 GB
Hard Drive Size: 1 TB
Laptop Screen Size: 17.3 inch
Screen Type: LED Backlight, Full HD Touchscreen Display
Resolution: 1920 x 1080
Graphics Card: NVIDIA GeForce 840M with 2048MB of dedicated system memory
Multi Media Drive: SuperMulti DVD Burner
Card Reader Type: 1 x SD Card Reader 
Battery Type: Lithium Ion
Network Connection: 10/100/1000 Gigabit Ethernet & 802.11ac Wireless LAN , Bluetooth 
Connector Type: 1 x DC-in, 1 x Ethernet, 1 x HDMI, 1 x Headphone/Microphone, 3 x USB 3.0
Operating System: Windows 8.1 64-bit (Eligable for free upgrade to Windows 10 Home. Check Windows.com for more info.)
Accessories Included: Power Cord ,  Battery
Keyboard   Backlit Keyboard with Numeric Pad, Multi-Touch Trackpad with Integrated Buttons, Touchscreen (Engraved Arabic)
Shipping Weight (in pounds): 8.9
Product in Inches (L x W x H): 1.22 x 16.52 x 10.98

Seagate Expansion 1TB Specifications

RODUCT INFORMATION
SKU 648014
Mfr Part# STEA1000400
UPC 763649064870
GENERAL INFORMATION
Series Expansion
Model Number STEA1000400
Packaging Retail
Type Portable
Color Black
PERFORMANCE SPECIFICATIONS
Form Factor 2.5"
Interface USB 3.0
Capacity 1TB
RPM 5,400 RPM
Data Transfer Rate USB 3.0: Up to 5Gbps; USB 2.0: Up to 480Mbps
ELECTRICAL SPECIFICATIONS
Power Supply USB Powered
PHYSICAL SPECIFICATIONS
Dimensions (WxDxH) 3.15" x 4.61" x 0.58"
Weight 0.37 lbs.
SYSTEM REQUIREMENTS
Supported Windows Operating Systems Microsoft Windows XP, Vista, 7, 8
PACKAGE CONTENTS
What's in the Box Seagate Expansion Drive, 18-inch (45.72cm) USB 3.0 Cable, Quick Start Guide
MANUFACTURER WARRANTY
Parts 1 Year Limited