The AppleCD 300e Plus was among a few nearly identical SCSI-connected external CD-ROM drives manufactured by Apple. All AppleCD models used a SCSI (Small Computer System Interface, pronounced “scuzzy”) connection. According to PC Magazine, SCSI was “used in mainframes, servers and storage arrays in the late 1980s and 1990s… The SCSI bus connects up to 15 devices in a daisy chain topology, and any two can communicate at one time: host-to-peripheral and peripheral-to-peripheral.”
The AppleCD had a 1x Read-Only CD-ROM that could read CDs with with up to 750 MB of data. Ports on the back of the device included two 50-pin Centronics SCSI connectors, red and white audio RCA connectors, and device power input. A front input included a mini-headphone audio jack. The AppleCD could read five CD formats: CD-Audio, CD-ROM, HFS, ProDOS, and High Sierra.
Several models of the AppleCD drive were made, including the SC, SC Plus, 150, 300, 300e, 300i plus, 600i, 600e plus, and 1200i. The “e” designates external devices using the same design as this AppleCD 300e Plus.
This particular iPhone 7 Plus model was used with an AT&T network in the United States. All iPhone 7 Plus models used a 5.5-inch widescreen multitouch Retina HD display at 1920×1080 (401 ppi). It used a taptic-engine that provided a clickless Home button. The iPhone 7 Plus used three cameras: two rear 12-megapixel cameras (one with a wide-angle and one with a 2x telephoto lens) and a front FaceTime HD camera (7 megapixels and 1080p).
The iPhone 7 Plus was originally available in five color options: silver (white glass front and a silver back), gold (white glass front and a gold back), rose gold (white glass front and a pink-tinted gold back), black (black glass front and a matte black back), and jet black (black glass front and a high-gloss anodized and polished black aluminum back). On March 21, 2017, Apple added a (PRODUCT) RED Special Edition with a white glass front and a red aluminum back.
The iPhone 7 Plus was splash, water, and dust-resistant (but not waterproof). It had a Lightning port, but lacked a headphone jack.
Internally, the iPhone 7 Plus used a 64-bit Apple A10 Fusion processor with four cores; 3 GB of RAM; and 32, 128, or 256 GB of storage. It supported 802.11a/b/g/n/ac Wi-Fi, Bluetooth 4.2, LTE (4G), and NFC for Apple Pay.