21.5 iMac Retina 4K mid 2017
 

3.6 GHz Intel Core i7 Quad-Core
32GB of DDR4 RAM | 256GB SSD
21.5" 4096 x 2304 IPS Retina 4K Display
AMD Radeon Pro 560 Graphics Card (4GB)
UHS-II SDXC Card Reader
Thunderbolt 3 | USB 3.0 Type-A

$2000 plus shipping. Or can meet in person in Brooklyn, NY

Purchased this computer from B&H in November 2017.
Like new. Very powerful.
Link to item:
https://www.bhphotovideo.com/c/product/1342870-REG/apple_z0tl_mne041_bh_imac_i7_3_6_qc.html/BI/2855/KBID/3801

All original packaging and accessories except mouse - it was traded in for a magic trackpad 2 (white) which comes instead of mouse in its original packaging.

Computer is in excellent condition, never moved anywhere from my desk. Getting rid of it to buy a macbook pro.